信息科學(xué)與電子工程專業(yè)英語(yǔ)課后答案

1、科技英語(yǔ)課件科技英語(yǔ)課件ExercisesExercisesHMILYYLIMH1UnitUnitUnit11ExercisesExercisesExercises(1)(1)(1)TranslateTranslateTranslatethethethefollowingfollowingfollowingsentencessentencessentencesintointointoChineseChineseChinese..1.As

2、withseriesresonancethegreatertheresistanceinthecircuitthelowertheQaccdinglytheflatterbroadertheresonancecurveofeitherlinecurrentcircuitimpedance.對(duì)于串聯(lián)諧振，電路中的電阻愈大Q值就愈低，相應(yīng)地線路電流或電路阻抗的諧振曲線也就愈平、愈寬。2.Awirecarryingacurrentlookse

3、xactlythesameweighsexactlythesameasitdoeswhenitisnotcarryingacurrent.一根帶電的導(dǎo)線其外表與重量都與不帶電導(dǎo)線完全一樣。3.Clickmouseonthewavefmdragittochangethepulserepetitionratedirectlyenteranewvalueoftheperiodintheprovideddialogueboxwhilekeepi

4、ngthepulsewidthunchanged.在波形上點(diǎn)擊鼠標(biāo)并拖動(dòng)來(lái)改變脈沖重復(fù)頻率，或者在提供的對(duì)話框中直接輸入新的周期值，而保持脈沖科技英語(yǔ)課件科技英語(yǔ)課件ExercisesExercisesHMILYYLIMH3ofthetransistastemperaturevaries.然而在設(shè)計(jì)得當(dāng)?shù)闹绷鞣糯笃髦校粽{(diào)節(jié)每一級(jí)的工作點(diǎn)使之在溫度變化時(shí)保持在晶體管線性區(qū)，就能在實(shí)際上消除Ico以外的晶體管參數(shù)變化所造成的影響。Unit

5、UnitUnit22ExercisesExercisesExercises(1)(1)(1)TranslateTranslateTranslatethethethefollowingfollowingfollowingsentencessentencessentencesintointointoChinese.Chinese.Chinese.1.Ifanalogsignalsaretobetransmitteddigitallythey

6、firsthavetobesampledataspecifiedratefurtherconvertedtodiscreteamplitudesamplesbyquantization.如果要以數(shù)字方式傳輸模擬信號(hào)，首先必須以一定的頻率對(duì)信號(hào)進(jìn)行采樣，然后通過(guò)量化進(jìn)一步將它們轉(zhuǎn)換為離散的幅度樣本。2.Linearfiltersamplifyattenuateedspatialfrequenciescanachievesucheffect