開關(guān)電源 測試報(bào)告_第1頁
開關(guān)電源 測試報(bào)告_第2頁
開關(guān)電源 測試報(bào)告_第3頁
開關(guān)電源 測試報(bào)告_第4頁
開關(guān)電源 測試報(bào)告_第5頁
已閱讀5頁,還剩56頁未讀, 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡介

1、Pass / Fail: According to specificationN.S. : Not SpecifiedN.T, : Not TestedItemTestSpecificationResultPage #RemarksA. INPUT CHARACTERIZATION1.1Input Current/Power/Efficiency/Power FactorEff%84%;Iin1.5APASS21.2No Load Input Power & Active Mode EfficiencyNo load (Pinv0.5W); 0.5W load (Pin1.0W); 1.0W

2、load (Pin1.7W);5W load (Pin2.4W);6W load (Pin 14W) 18.7W load (Pin87%PASS41.3Acoustic Noise17VdcPASS192.3Ripple and Noise380mVp-pPASS212.4Dynamic Loading Response18.55Vdc 19.95VdcPASS252.5Output Over / Under Shoot10%PASS292.6Turn On Delay/ Hold up / DC Rise/Fall TimePower-on time 5mS; Rise time 45 d

3、eg.PASS35C. PROTECTION3.1Short circuit ProtectionNo damagePASS363.2Over Current Protection5.7APASS403.3Over Voltage ProtectionVmax:27VPASS41D. EMC/SAFETY/ENVIRONMENTAL4.1Electric Strength (Hi-Pot) 10mAPASS434.2Leakage Current50uA100Vac;20MQPASS454.4Electromagnetic Discharge (ESD)IEC61000-4-2PASS464.

4、5Electromagnetic Fast Transient And Burst (EFT)IEC61000-4-4PASS484.6AC Surge Immunity (PLD_BI Wave)EN61000-4-5PASS504.7Electromagnetic CompatibilityUnder -6dBPASS524 hours storage at 0C, and operating at 40CTest Equipment: TOPNOTCH OTC-2B-N Open Chamber CHROMA Series AC Source / DC LoadPreparedCheck

5、ed (TE)Checked (EE)ApprovedINPUT CHARACTERIZATIONINPUT CURRENT/POWER/EFFICIENCY/POWER FACTORTest conditions:The unit is set at maximum load and the input voltage is varied from the minimum to the maximum value. Efficiency is computed and Power Factor is either computed or measured after 10 minutes w

6、arm up at least.Test equipment:Chroma Model 8000 Power Supply Auto Test SystemChroma Model # 6590 9KVA Low Impedance AC SourceChroma Model # 630X0 DC LoadChroma Model # 6630 Power AnalyzerPass/Fail criteria:The unit test shall meet the specification requirements.Test result: PASS25OCVin(Vac)Freq(Hz)

7、Iin(A)Pin(W)Vout(V)Pout(W)Pd(W)PFEff(%)90.00047.0001.283103.90018.79088.85315.0470.89985.518100.00050.0001.128102.70018.78888.87713.8230.90886.540115.00050.0000.965101.60018.80288.94812.6520.91387.547120.00050.0000.924101.50018.78088.80612.6940.91387.494130.00050.0000.851101.20018.78088.84112.3590.9

8、1287.788140.00050.0000.790100.90018.78888.87712.0230.91088.084150.00050.0000.738100.80018.79088.88811.9120.90788.183160.00060.0000.695100.70018.80288.94811.7520.90388.329170.00060.0000.655100.40018.79888.92411.4760.89988.570180.00060.0000.620100.50018.79288.90011.6000.89788.458190.00060.0000.589100.

9、30018.78588.86511.4350.89388.599200.00060.0000.563100.40018.78888.84111.5590.88888.487210.00060.0000.539100.50018.78588.83011.6700.88488.388220.00060.0000.517100.50018.78888.87711.6230.87988.434230.00060.0000.498100.70018.79288.90011.8000.87588.282240.00060.0000.481100.80018.79588.87711.9230.87088.1

10、71250.00060.0000.465100.80018.80588.92411.8760.86588.218264.00063.0000.447101.00018.79088.85312.1470.85387.9730CVin(Vac)Freq(Hz)Iin(A)Pin(W)Vout(V)Pout(W)Pd(W)PFEff(%)90.00047.0001.279103.60018.87089.23214.3680.89986.131100.00050.0001.127102.30018.86889.25513.0450.90787.248115.00050.0000.967101.5001

11、8.87589.25512.2450.91187.936120.00050.0000.926101.30018.86889.22012.0800.90988.075130.00050.0000.852101.20018.88089.27911.9210.90988.220140.00050.0000.789100.70018.86289.19611.5040.90988.576150.00050.0000.739100.50018.88289.29111.2090.90588.846160.00060.0000.693100.40018.87089.23211.1680.90288.87617

12、0.00060.0000.654100.20018.86889.25510.9450.89989.077180.00060.0000.619100.10018.86889.22010.8800.89689.131190.00060.0000.588100.10018.86889.22010.8800.89389.131200.00060.0000.561100.20018.87289.24310.9570.88989.065210.00060.0000.537100.20018.88089.27910.9210.88589.101220.00060.0000.516100.30018.8828

13、9.29111.0090.88089.024230.00060.0000.496100.20018.88589.30210.8980.87589.124240.00060.0000.479100.30018.88589.30210.9980.87089.035250.00060.0000.463100.40018.87889.26711.1330.86488.911264.00063.0000.444100.40018.87589.25511.1450.85388.90040 CVin(Vac)Freq(Hz)Iin(A)Pin(W)Vout(V)Pout(W)Pd(W)PFEff(%)90.

14、00047.0001.276103.60018.86589.17214.4280.90186.074100.00050.0001.125102.30018.86089.14913.1510.90787.145115.00050.0000.963101.20018.86889.18412.0160.91188.127120.00050.0000.922101.10018.87289.20811.8920.91288.237130.00050.0000.849100.80018.88089.24311.5570.91088.535140.00050.0000.787100.50018.88289.

15、25511.2450.90988.811150.00050.0000.735100.40018.87089.19611.2040.90788.841160.00060.0000.692100.20018.86289.16111.0390.90388.983170.00060.0000.652100.00018.86289.16110.8390.89989.161180.00060.0000.618100.10018.86889.18410.9160.89689.095190.00060.0000.58799.80018.87589.22010.5800.89389.399200.00060.0

16、000.56099.90018.88589.26710.6330.88989.356210.00060.0000.536100.10018.88589.26710.8330.88589.178220.00060.0000.51599.90018.88289.25510.6450.88089.345230.00060.0000.495100.10018.87889.23210.8680.87589.142240.00060.0000.477100.10018.87089.19610.9040.87089.107250.00060.0000.462100.20018.86589.17211.028

17、0.86488.995264.00063.0000.444100.40018.87289.20811.1920.85488.853ACTIVE MODE EFFICIENCY & NO LOAD INPUT POWERTest conditions:The unit is set at no load and the rated input voltage for at least 15 minutes.The ambient temperature is set between 15 Deg C to 35 Deg CTest equipment:Chroma Model 8000 Powe

18、r Supply Auto Test SystemChroma Model # 65909KVA Low Impedance AC SourceChroma Model # 630X0 DC LoadChroma Model # 6630 Power AnalyzerPass/Fail criteria:The unit test shall meet the specification requirements.Test result: PASSNo Load Power Consumption: (Pin05W)Input Voltage(Vac)Load(W)lin rms(A)Powe

19、rFactorPin(W)Vo (Vdc)1150.000.0500.0100.28119.3472300.000.0840.0160.31019.3470.5W Load Power Consumption: (Pin1.0W)Input Voltage(Vac)Load(W)lin rms(A)PowerFactorPin(W)Vo (Vdc)1150.50.0510.0730.43219.3452300.50.0840.0290.59019.3451.0W Load Power Consumption: (Pin1.7W)Input Voltage(Vac)Load(W)Iin rms(

20、A)PowerFactorPin(W)Vo (Vdc)1151.00.0530.1771.07419.3432301.00.0850.0631.24019.3431.5W Load Power Consumption: (Pin2.4W)Input Voltage(Vac)Load(W)Iin rms(A)PowerFactorPin(W)Vo (Vdc)1151.500.0550.2731.72319.3372301.500.0860.0961.90019.33711.6W Load Power Consumption: (Pin14W)Input Voltage(Vac)Load(W)Ii

21、n rms(A)PowerFactorPin(W)Vo (Vdc)11511.60.1410.80613.13019.28523011.60.1090.52613.17019.27018.7W Load Power Consumption: (Pin45(D) 65(H) cmA3 Anechoic chamber.Test equipment:Anechoic Chamber: Free-Field Acoustics Corp. Lower than 10dB(A) background noise.B & K Portable Pulse Type 3560C, Microphone:

22、4190, Preamplifier: 2669LPass/Fail criteria:The AC Adapter shall produce no human perceivable audible noise (less then 25dB).Test result: PASSBack Ground5.86dB (A)SpecificationNo human perceivable audible noise (20 20KHz)Output Load (A)Input Voltage / Reading (dB)115Vac230Vac0 A21.616.91.58A18.621.0

23、Max23.422.8The above diagram depicts the microphone of the frontal plane of the microphone to the Adapter and the height of the centerline of the microphone to the Adapter.Acoustic Noise Test Set-UpTest condition:For cold start test at room ambient, the adapter should be off for at least one hour at

24、 the test temperature to ensure it is at a uniform temperature before the test is started. Turn on the UUT at 90 degrees at positive cycle or 270 degrees at negative cycle. Between each test, the UUT shall be cooled down for at least 3 minutes and the Bulk Caps Energy is discharged.For hot start tes

25、t at max. Operating ambient, the adapter should be on and running for at least one hour at the test temperature to ensure it is at a uniform temperature before the test is started.- Repetitive ON/OFF (1Sec. ON/1Sec. OFF for 10 times) cycling of the UUT and turn on at 90 degrees at positive cycle or

26、270 degrees at negative cycle. Between each test, the Bulk Caps Energy shall be discharged.Test equipment:Chroma Model 8000 Power Supply Auto Test SystemChroma Model # 6590 9KVA Low Impedance AC SourceChroma Model # 630X0 DC LoadTektronix AM503 Current Probe AmplifierTektronix A6303 Current ProbeTek

27、tronix TDS-5054 OscilloscopePass/Fail criteria:The inrush current shall meet the specification requirements.AC line inrush current shall not damage any components, nor cause the AC line fuse to blow, under any DC load conditions, any ambient temperature, and with any ac line input voltage and freque

28、ncy.Test result: PASSExtended Name = Cold start 25 deg. ambient; after 1 hour in off stage Vin=90Vac Inrush Current=57.6A. 1).Vin 4).IinExtended Name = Cold start 25 deg. ambient; after 1 hour in off stage Vin=264Vac InrushCurrent=138.0A. 1).Vin 4).Iinye-Lrtg EppiaY &urenr hMsure Mfl4r H_ith FScape

29、UUbK *pExtended Name = Hot start 25 deg. ambient;Repetitive on/off cycle 10 times. Vin=90Vac InrushCurrent=56.4A. 1).Vin 4).IinExtended Name = Hot start 25 deg. ambient; Repetitive on/off cycle 10 times. Vin=264Vac Inrush Current=138.0A. 1).Vin 4).IinTest conditions:The unit is subjected to a dropou

30、t of the AC line voltage from 100Vac/50Hz to zero volt for duration which equal to 7mS repeated 10 times with a period of 1 second. The unit is fully loaded. Dropout shall occur at any input phase angle.Test equipment:Chroma Model 8000 Power Supply Auto Test SystemChroma Model # 6590 9KVA Low Impeda

31、nce AC SourceChroma Model # 630X0 DC LoadTektronix TDS-5054 OscilloscopeTektronix P5100 ProbePass/Fail criteria:The unit test need not maintain within regulation but shall not latch off.Test result: PASSC. -6W.LIa;1) Vin 2) VoK IE* Ml ULI:1) Vin 2) VoCm 5? Emi|hrs : -uoaiiC. -6W.LIa;Extended Name =

32、Dropout; 100Vac/50Hz (0Extended Name = Dropout; 100Vac/50Hzdeg) Dropout 10 ms at Max. Load(90 deg) Dropout 10 ms at Max. LoadExtended Name = Dropout; 100Vac/50Hz(270 deg) Dropout 10 ms at Max. Load1) Vin 2) Vo1.6 BROWNOUT & BROWNOUT RECOVERYTest conditions:The input voltage decreases from 90Vac/50Hz

33、 down to zero in 30 minutes.The input voltage increases from 0Vac up to 90Vac/50Hz in 30 minutes.Test equipment:CHROMA 6530 AC SOURCECHROMA 630XX DC LOADPass/Fail criteria:The input voltage below the minimum specifies shall not cause damage to the power supply unit (due to over-heating or otherwise)

34、.The PSU shall recover after an AC power reset.Test result: PASS1.7 TOTAL HARMONIC DISTORTIONTest conditions:The power line is distorted (flat-topped) with a total harmonic distortion of up to 10% (100Vac 50 Hz with 10 % THD = 90 Vrms).Test equipment:Chroma Model 8000 Power Supply Auto Test SystemCh

35、roma Model # 65909KVA Low Impedance AC SourceChroma Model # 630X0 DC LoadTektronix TDS-5054 OscilloscopeTektronix P5100 ProbePass/Fail criteria:The unit test shall meet the specification requirements.1.8 LINE VOLTAGE SURGETest conditions:While the unit is operating with maximum continuous load, the

36、line voltage is switched to the surge voltage as indicated below:220 Vac to 286Vac for 1sec, and back to 220Vac at 50Hz, repeated 10 times with 10 seconds interval.Test equipment:Chroma Model 8000 Power Supply Auto Test SystemChroma Model # 6590 9KVA Low Impedance AC SourceChroma Model # 630X0 DC Lo

37、adTektronix TDS-5054 OscilloscopeTektronix P5100 ProbePass/Fail criteria:The unit test shall meet the specification requirements.Test result: PASSTest conditions:While the unit is operating with maximum continuous load, the line voltage is switched to the sag voltage as indicated below:100 Vac to 80

38、Vac for 0.5 sec., and back to 100Vac at 50Hz, repeated 10 times with 10 seconds interval.Test equipment:Chroma Model 8000 Power Supply Auto Test SystemChroma Model # 6590 9KVA Low Impedance AC SourceChroma Model # 630X0 DC LoadTektronix TDS-5054 OscilloscopeTektronix P5100 ProbePass/Fail criteria:Th

39、e unit test shall meet the specification requirements.Test result: PASS1.10 VOLTAGE DIP IMMUNITYTest conditions:While the unit is operating with maximum continuous load, the 100Vac/50Hz and 240Vac/50Hz line voltage is switched to the dip voltage as indicated below:30%, 60%, 100% dip voltage for:0.5c

40、ycle, 1cycle, 5cycle, 10cycle, 25cycle, 50cycle, 250cycle durationsTest equipment:Chroma Model 8000 Power Supply Auto Test SystemChroma Model # 6590 9KVA Low Impedance AC SourceChroma Model # 630X0 DC LoadTektronix TDS-5054 OscilloscopePass/Fail criteria:The unit test shall meet the specification re

41、quirements.Test result: PASSDuration timesDip Voltage (Vin=100Vac/50Hz)Dip Voltage (Vin=240Vac/50Hz)30%60%100%30%60%100%0.5 cycle*1*1*1*1*1*11 cycle*1*1*1*1*1*15 cycle*1*1*2*1*1*210 cycle*1*2*2*1*1*225 cycle*1*2*2*1*1*250 cycle*1*2*2*1*1*2Note: *1 Output within spec & no damage; *2 Self shutdown & n

42、o damage1.11 HARMONIC CURRENTS & EN61000-3-2 PRE-COMPLIANCETest condition:The harmonic components are compared with the limits set for Class D equipment. The input voltage is set at indicated values and the harmonic current values are recorded and compared to the EN61000-3-2 requirements.Test equipm

43、ent:Chroma Model 8000 Power Supply Auto Test SystemChroma Model # 6590 9KVA Low Impedance AC SourceChroma Model # 630X0 DC LoadTektronix TDS-5054 OscilloscopePass/Fail criteria:The harmonic current values shall meet the EN61000-3-2 requirements.Test result: PASSVin(Vac)Fin(Hz)Iin(A)PFPin(W)THDTest R

44、esult100.00050.0001.1350.858103.12339.090PASS230.00050.0000.5020.791101.37446.140PASSInput(Vac)StandardClassOrderReadingLimit%100.000JapanClass D11.057*20.012*30.3730.80446.42040.007*50.1510.44933.66060.004*70.0470.23719.82280.004*90.0330.11827.895100.004*110.0450.08354.831120.005*130.0390.07056.063

45、140.003*150.0240.06139.044160.002*170.0060.05410.634180.002*190.0120.04825.678200.002*210.0160.04336.866220.002*230.0050.04012.626240.002*250.0020.0366.319260.002*270.0070.03419.881280.002*290.0050.03116.879300.002*310.0060.02921.769320.001*330.0040.02813.043340.001*350.0060.02623.846360.001*370.005

46、0.02521.951380.001*390.0030.02311.538400.001*230.000IEC-1000-3-2Class D10.456*20.006*30.2080.34560.45840.003*50.0190.1939.96960.002*70.0150.10115.08980.002*90.0070.05114.201100.001*110.0020.0365.352120.001*130.0030.03010.333140.001*150.0030.02610.385160.001*170.0020.0236.522180.001*190.0010.0216.829

47、200.001*210.0010.0194.839220.001*230.0010.0174.706240.000*250.0010.0167.051260.000*270.0010.0143.448280.001*290.0010.0145.926300.001*310.0010.0135.556320.000*330.0010.0125.085340.000*350.0000.0111.786360.000*370.0010.0104.762380.000*390.0000.0100.867400.001*OUTPUT CHARACTERIZATIONLOAD, LINE/CROSS RE

48、GULATIONTest condition:Test is repeated from different input voltages. The output is at minimum load then at maximum.Test equipment:Chroma Model 8000 Power Supply Auto Test SystemChroma Model # 6590 9KVA Low Impedance AC SourceChroma Model # 630X0 DC LoadPass/Fail criteria:The unit test shall meet t

49、he specification requirements.Test result: PASS25OCVin(V)Fre.(Hz)Power(W)Load(A)Vout(V)90.00047.0000.0730.00019.362100.00050.0000.07319.360240.00060.0000.0730.00019.360264.00063.0000.07319.36090.00047.00045.2012.37019.103100.00050.00045.20119.103240.00060.00045.2012.37019.103264.00063.00045.18919.09

50、790.00047.00089.0894.74018.825100.00050.00089.10118.827240.00060.00089.0774.74018.823264.00063.00089.05418.8250OCVin(V)Fre.(Hz)Power(W)Load(A)Vout(V)90.00047.0000.1100.00019.360100.00050.0000.07319.361240.00060.0000.0730.00019.360264.00063.0000.07319.36090.00047.00045.6572.37019.105100.00050.00045.6

51、6319.103240.00060.00045.6462.37019.108264.00063.00045.64619.09790.00047.00090.2964.74018.824100.00050.00090.09818.827240.00060.00090.0014.74018.823264.00063.00090.04518.82540OCVin(V)Fre.(Hz)Power(W)Load(A)Vout(V)90.00047.0000.0730.00019.380100.00050.0000.07319.380240.00060.0000.0360.00019.380264.000

52、63.0000.07319.38090.00047.00045.3202.37019.138100.00050.00045.29019.140240.00060.00045.3142.37019.135264.00063.00045.27819.13590.00047.00089.3144.74018.872100.00050.00089.30218.870240.00060.00089.3504.74018.880264.00063.00089.36118.875PEAK LOAD.Test conditions:The output regulation shall be kept for

53、 a period of 5Sec at 6.32A peak load from90W.Test equipment:Tektronix TCP-202 Current ProbeTektronix TDS-5054 OscilloscopePass/Fail criteria:The unit test shall meet the specification requirements.Test result: PASS25OCVin (Vac)Fin (Hz)Initial Load(A)Surge Load(A)Duration Time(mS)Vout Max Spec.(V)Vou

54、t Min Spec.(V)Vout Max.(V)Vout Min.(V)Result90.0047.004.746.325000.0019.9517.0018.9218.48PASS264.0063.004.746.325000.0019.9517.0018.8818.52PASS0CVin (Vac)Fin (Hz)Initial Load(A)Surge Load(A)Duration Time(mS)Vout Max Spec.(V)Vout Min Spec.(V)Vout Max.(V)Vout Min.(V)Result90.0047.004.746.325000.0019.9

55、517.0018.9218.52PASS264.0063.004.746.325000.0019.9517.0018.9218.16PASS40 CVin (Vac)Fin (Hz)Initial Load(A)Surge Load(A)Duration Time(mS)Vout Max Spec.(V)Vout Min Spec.(V)Vout Max.(V)Vout Min.(V)Result90.0047.004.746.325000.0019.9517.0018.9218.56PASS264.0063.004.746.325000.0019.9517.0018.9218.32PASS3

56、翻如O6N4!I Ki M:5T t?頁mHCursi 1CursZCuisZ5們泗51D2HJPMiWHHfWW枚g|WO碗EHUEfeiiCn.t:A2L0IW:ijftwWe.網(wǎng)呻?Extended Name = 90Vac Full load then peak to 6.32A 2). Vout 3). IoutExtended Name = 264Vac Full load then peak to 6.32A 2). Vout 3). Iout也業(yè)4 HjyE&q Dip DnSjf 匚wme fpmi眺蝴CM用.:拙.NhgMW3)-,Mn啊RIPPLE AND NOISE (

57、P.A.R.D.)Test conditions:Ripple voltage and noise are measured at the pins of the mating connector of which each output is decoupled by a high frequency and tantalum capacitor. Bandwidth is set at 20MHz.Test equipment:Chroma Model 8000 Power Supply Auto Test SystemChroma Model # 6590 9KVA Low Impeda

58、nce AC SourceChroma Model # 630X0 DC LoadTektronix TCP202 Current ProbeTektronix P5100 ProbeTektronix TDS-5054 OscilloscopePass/Fail criteria:The unit test shall meet the specification requirements.Test result: PASS25 CInput(Vac)FrequencyTotal Power (W)Load (A)PARD (mV)90470.070.00088.0264630.070.00

59、0112.0904789.074.740216.02646389.104.740180.01) Vpk-pk1) Vpk-pkExtended Name = 90V/47Hz Full Load 1) Vpk-pkExtended Name = 264V/ 63Hz Full Load 1) Vpk-pkCh2 HOIMlV M WJams前.Cl 沛4A j- MVExtended Name = 90V/ 47Hz 0A 1) Vpk-pkExtended Name = 264V/ 63Hz 0A 1) Vpk-pk0 CInput(Vac)FrequencyTotal Power (W)L

60、oad (A)PARD (mV)90470.070.000107.2264630.070.000113.6904789.274.740264.02646389.294.740196.040 CInput(Vac)FrequencyTotal Power (W)Load (A)PARD (mV)90470.070.000123.2264630.070.000160.0904789.464.740276.02646389.504.740252.0ye- tdftHiftiAcq LrtQ3皿 hMsure Mad-r flith FScape UUbK *pCh2 HOIMlV I *|M WJa

溫馨提示

  • 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會(huì)有圖紙預(yù)覽,若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫網(wǎng)僅提供信息存儲(chǔ)空間,僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請(qǐng)與我們聯(lián)系,我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

評(píng)論

0/150

提交評(píng)論