科技英語單詞

1、第一章 隨機(jī)過程toss a diebe at liberaty to do sth./be free to1 time out of 6/（1/6）of the dicesample function/probability density function/autocorrelation fuction/delta funtionParsevals/shannon theoremHartley-Shannon lawenergy /power spectral density/spectral rangethe upper-frequency limit/lower bound/upper

2、 limittruncate截短，截斷/cutoff截止/smooth tone transition過渡，轉(zhuǎn)變/span橫跨，跨越intuitive/intuitively直覺的/直覺地in an attempt to 為了it can be argued that 我們可以證明we observe that 我們發(fā)現(xiàn)we recall that，and identifyingas，we find that我們回想一下有，然后定義，最終我們發(fā)現(xiàn)deterministic確定性的heuristic啟發(fā)式的，漸進(jìn)的complementary互補(bǔ)的/compact/brief緊湊的；簡潔的impl

3、ement使用/perform實(shí)施/exploit使用/employ使用/exploitation剝削/impractical無法實(shí)現(xiàn)的/suited to適用于successive/continuous連續(xù)的/discrete離散的/disperse/distribute分散，散開/discrete level離散電平analogously類似地/correspondingly與之相關(guān)聯(lián)的/specifically具體說來/hereafter今后，從此以后/basically就是/broadly大致上neighboring samples相鄰樣品/adjacent cells相鄰小區(qū)proc

4、edure方法/in this technique技術(shù)/process方法/methodequation式子，公式/expression表達(dá)式/formula公式，秘方/identity恒等式definition定義/theorem定理/law定律/axiom公理a negative statement of/associated with/negative theorem逆定理conceptually概念地/outline/synthesis部分/synopsis/conspectus提綱，要點(diǎn)，概要/reliably可靠地/reasonably相當(dāng)?shù)?appreciable相當(dāng)?shù)?/sel

5、ectively有選擇地collection/ensemble集合，集/subset子集/specimen/example/instance例子interval/separation/spacing/gap間隔，距離variable變量/variation動態(tài)范圍/argument自變量；輻角margin余量；容限facorization因式分解time invariant時不變的statistical average統(tǒng)計平均值root-mean-square 均方根/zero-mean 零均值covariance協(xié)方差uncorrelated不相關(guān)的stationary平穩(wěn)的ergodic各

6、態(tài)歷經(jīng)的uniform/even均勻的，一致的/ normalized energy歸一化能量performance性能/properties特性/characteristics/specifications特性，特征/availability可用性/nature/intrinsicoperation運(yùn)算；設(shè)備/operator算子，接線員product乘積quotient商，系數(shù)，份額/ratio to除以/divided by除以convolved with 卷積sum和/be appended tosubtraction減法derivative導(dǎo)數(shù)differential微分，差分/di

7、fferentiate求微分/differences偏差，差異integral積分/integrate積分/integer整數(shù)/rational number有理數(shù)/real number/imaginary number實(shí)虛數(shù)Q有理數(shù)（quotient）Z整數(shù)（zahlen（德）N自然數(shù)（natural）C復(fù)數(shù)（complex）R實(shí)數(shù)（real）in proportional to 正比于第二章 信道容量be something ofM-ary trinal三倍的，三重的binary/ternary/quaternary/hexadecimal/16 band 16進(jìn)制/mudulo-2 a

8、dder模二加法器the number of levels級數(shù)/stage級bandlimited gaussian channel帶限高斯信道/lowpass/highpassamount of information/information content/quantity of information/information quantity信息量resistor電阻/resistence電阻值capacitor/capacitenceinductor/inductenceattenuate衰減，使衰減/small gradual changes緩慢變化/a slight varianc

9、e小變化方差antenna天線/antennedistort失真，使失真quantize量化/quantization/quantizor量化器/quantum量，定量equalizer均衡器signal-to-noise ratio信噪比bit error rateencompass/house/consist of包括，包含allow允許compres壓縮/compand壓縮擴(kuò)展/expand擴(kuò)展/expandor/compandor/compressor/companding/compressionimpress施加complication復(fù)雜化/contamination污染，污染物/

10、combination組合/component分量whereby/thereby由此/vice versa反之亦然/remain the sameoverride蓋過/exceed超過/overwhelm淹沒，覆蓋/combat戰(zhàn)勝/suppress壓制devise發(fā)明/derivation/deduction推導(dǎo)，導(dǎo)出/contemplate預(yù)期，預(yù)料/presumed假定的，推測的/visualize設(shè)想/treatment論述，分析eduction減少，縮小/deduce/decrease/lowerformidable困難的，棘手的sophisticated復(fù)雜的，精于世故的/cyni

11、cal世故的rounding四舍五入/round off近似到trade off交換/switching/take on形成/convert轉(zhuǎn)化/transform變換/handoff切換第三章 脈沖編碼調(diào)制基礎(chǔ)synchronous同步的data bits數(shù)據(jù)比特/data streams數(shù)據(jù)流/pulse train脈沖序列/code sequence碼序列step size步長entropy熵，平均信息量PDM（pulse duration modulation）脈寬調(diào)制amount to實(shí)際上是/in practice實(shí)際上fromthrough 從到crest factor振幅因數(shù)（

12、振幅與有效值之比）reconstruct/reshape/recover/restore/recreatebe held and filtered 保持，濾波be fed into/feedback反饋serially串行地/parallel并行的interconnect使互相連接sign符號/ symbolparameter參數(shù)，參量applicable適用的，合適的/fundamentalfundamentalism原教旨馬列主義（基本教義派）/expansionism擴(kuò)張主義inverse求逆/reverse掉頭mount山峰/peak峰值/summit峰會original原始的/raw

13、未加工的 raw dataunipolar單極性的errors be detected and/or corrected檢錯和糾錯/detective偵探/detector檢測器第四章 信道編碼基礎(chǔ)redundancy冗余/appendixif and only if當(dāng)且僅當(dāng)decibel分貝sufficient/sufficeshift register移位寄存器constraint length制約長度possess a considerable amount of structure擁有豐富的結(jié)構(gòu)/be highly structured具有高度的結(jié)構(gòu)化/seven-cell patte

14、rn結(jié)構(gòu)power grid電網(wǎng)滿足satisfy/meet demand/propertyextensively廣泛的/intensively深入地distinct不同的/widely different完全不同的/be identical to等同于/correspond to對應(yīng)于 /fundamentally different根本不同/considerably different相當(dāng)不同/markedly顯著地，明顯地/apparentlyorthogonal正交的convolutional卷積的/cyclic循環(huán)的，周期的/cyclic code/cyclic shiftparit

15、y奇偶性，奇偶校驗 bitsalphabet字符表/algebraic代數(shù)的 algebraic function/linear algebra/ linear combinations/linearityalpha/beta/theta/omegaretransmission轉(zhuǎn)發(fā)，中繼demonstrate公開表示/denote指示，表示/prescribe指示，規(guī)定/represent講述/depict描述/invlove指的是，就是，涉及到matrix矩陣polynomial多項式/generator polynomial生成多項式/logic table真值表/state diagra

16、m狀態(tài)流圖/tree diagram樹狀圖/trellis diagram網(wǎng)格圖AWGN加性高斯白噪聲（additive）ADPCM自適應(yīng)差分脈沖編碼調(diào)制bandwidth efficiency頻帶利用率code block length碼組長度block codes分組碼/be grouped into分組成/bank組/a bank of陣，陣列/be mapped into映射成FEC（forward error correction）前向糾錯碼demodulator解調(diào)器最小多項式polynomia irreduciblevector array向量數(shù)列emanate發(fā)出/emanat

17、e from發(fā)源于第五章 調(diào)制digitize將數(shù)字化/digital數(shù)字的/data數(shù)據(jù)/data telemetry數(shù)據(jù)遙測vestigial殘留的，剩余的vestigial-sideband殘留邊帶overall/collectively共同的，全體的representative典型的，具有代表性的appreciable可觀的，可評估的line-of-sight propagation視距傳播/travellingfractional部分的/fractional bandwidth相對帶寬/absolute bandwidth絕對帶寬beam波束brute force method強(qiáng)制法

18、transatlantic橫渡大西洋的tune調(diào)諧jumble混雜rupture破裂。絕緣擊穿/abrupt不連續(xù)的，急劇的，陡的stereophonic立體聲的more or less或多或少的modulated signal已調(diào)信號/modulating signal調(diào)制信號/pleasant priminister/pleasing primierspectral component頻譜分量in relation to關(guān)于，涉及，與相比/suit to適于，適合于/in an effort to為了DM（delta modulation）調(diào)制，增量調(diào)制ADM（adaptive）自適應(yīng)增量

19、調(diào)制DPCM（differential pulse code modulation）差分脈沖編碼調(diào)制ASK（amplitude）振幅鍵控FSK移頻鍵控PSK相移鍵控DPSK（differential）差分相移鍵控TDM（time-division multiplexing）時分復(fù)用/demultiplexing解復(fù)用FDM/CDM/SDMaccount for解釋，說明coaxial cable同軸電纜alternatives/alternatively分類categorize/classify/be classed asspecific具體的/specify/specifically/spe

20、cification規(guī)格/be more representative of更具典型意義finalize/semi-final半決賽transparent/apparent/transparency/appearanceoptical guide光導(dǎo)/guiding medium傳導(dǎo)媒介mass medius/mediumfrequency translation property頻譜搬遷特性/wireless近處無線/radio propagation遠(yuǎn)距離射頻傳播/radiationsuppressed carrier/be impressed on a carrierconstraint

21、s/limitations缺陷along this line在此范圍內(nèi)select/choose/electbe separated from從中分離出來/assignment分配/different assigned carrier frequency信源source/信宿destination/sink/第十三章 移動無線通信technological技術(shù)上的/geographic地理的geology/geologic/topographicalapplicable應(yīng)用/compatible兼容反 pseduwire偽線/camonflage偽無線subscriber用戶infrastru

22、cture基礎(chǔ)設(shè)施/superstructure上層建筑cellular phone/mobile telephone蜂窩電話actuality實(shí)際情況；事實(shí)duplex雙工的/full-duplex全雙工/dual雙重的/dual-mode雙模/modulo模hybrid混合的/hybrid coder混合編碼器wireless/over-the-air transmission/radio accessroam/move aboutpreassign預(yù)先指定，預(yù)先分配the turn of millennium一千年reciprocal倒數(shù)be proportional to the reciprocal ofinterstate州際的alphanumeric包括文字與數(shù)字的pager尋呼機(jī)idle空閑的charter許可證，協(xié)議/contract for the standardization of GSMpseudo random偽隨機(jī)digital code數(shù)字碼Nordic北歐人的retain the samethe basic concept