【正文】 阻抗不是一個(gè)相量，因此不能通過把它乘以并取其實(shí)部把它轉(zhuǎn)換成時(shí)域形式。另一種方法是求出每個(gè)獨(dú)立源對(duì)變量的作用然后把它們進(jìn)行疊加。我們通常應(yīng)當(dāng)把線性電阻器僅僅稱為電阻器。（賓語從句）Electrons always move toward where the potential is 。（定語從句）The places where small puters can be used appear 。（表語從句）You should determine which of the following functions is 。（動(dòng)名詞作介賓）Mechanization is using machines instead of hand 。 stations are usually located near a river or lake because large quantities of cooling water are needed to condense the steam as it exhausts from the ，這是因?yàn)樾枰罅康睦鋮s水在蒸汽從汽輪機(jī)排出時(shí)將其冷凝。 synchronous machine as an AC generator driven by aturbine is the device which converts mechanical energy to electrical energy, in powers ranging up to ，同步電機(jī)是將機(jī)械能轉(zhuǎn)化為電能的設(shè)備，其功率范圍高達(dá)1500MW。 illustrated in , the aggregated load represented at a transmission substation(bus A)usually includes, in addition to the connected load devices, the effects of substation stepdown transformers…，在輸電變電站（母線A）所給出的集合負(fù)荷，除了所連接的負(fù)荷設(shè)備以外，通常還包括變電站降壓變壓器的影響……。這樣的裝置稱之為電容器，其儲(chǔ)存電能的能力稱為電容?；颍弘娙荽嬖谟趯?dǎo)體之間，等于導(dǎo)體之間單位電壓對(duì)應(yīng)的電量。 the system expands and higher voltage levels bee necessary for transmission, the older transmission lines are often relegated to subtransmission ，舊的輸電線路往往被移交給中壓輸電功能。2)The reluctance motor operates synchronously at a speed which is determined by the supply frequency and the number of poles for which the stator is ，該速率是由電源頻率和定子繞制的級(jí)數(shù)決定的。1)If it is possible, the openloop control approach should be used in this possible, the openloop control approach should be used in this ，這個(gè)系統(tǒng)應(yīng)該使用開環(huán)控制方法。2)A threephase circuit, as it was pointed out above, is merely a bination of three singlephase threephase circuit, as pointed out above, is merely a bination of three singlephase ，三相電路只不過是三個(gè)單相電路的組合。3)We must do various experiments before a new electronic product is designing a new electronic product we must do various ，我們必須做各種實(shí)驗(yàn)。5)Electrical energy can be stored in two metal plates separated by an insulation a device is called a capacitor, and its ability to store electrical energy is termed is measured in ，這樣的裝置被稱為電容器，它儲(chǔ)存電能的能力就被稱為電容。第五篇：專業(yè)英語翻譯1)Electricity can be measured in amount and 。然而，該角度在任何情況下都不能超過墻后填土的內(nèi)摩擦角。一般土壓力楔體理論的公式（考慮了沿?fù)跬翂γ娴哪Σ粒┮部梢杂脕碛?jì)算墻體和填土面傾斜等其它所有情況下的水平分力。土最重要的性質(zhì)看來是密度、砂土的內(nèi)摩擦角、黏性土的黏聚力和超固結(jié)比。當(dāng)擋土結(jié)構(gòu)擠壓墻后土體時(shí)，產(chǎn)生被動(dòng)土壓力。為了方便垂直力量包括墻壁的垂直載荷的重量和任何它可能攜帶，隨土壤以上的L形和T形墻踵重量在一起。在某些類型的結(jié)構(gòu)檢驗(yàn)中，還需要有內(nèi)部的穩(wěn)定，例如鋼筋混凝土墻，加固土墻。當(dāng)然，設(shè)計(jì)者還必須適當(dāng)考慮特種鋼，制造技術(shù)，檢測(cè)和修正程序的額外費(fèi)用。像發(fā)生在更厚或者更大顆粒元素的鋼材中南，三向的幾何約束也會(huì)促進(jìn)脆性，這是因?yàn)橛懈叩木植繎?yīng)力，因?yàn)樵陂_裂過程中的更大的能量釋放和裂縫傳播的減緩。由于鋼材的延性，在三向約束條件下，結(jié)構(gòu)對(duì)脆性破壞的抵抗由局部應(yīng)力集中的大小確定。一旦開始，裂紋就會(huì)穩(wěn)定增長因?yàn)橥饬?huì)提供撕裂鋼材所需的能量。壓力聚集者，應(yīng)避免。這通常是橋梁，起重機(jī)，和支撐機(jī)械的結(jié)構(gòu)物的問題，而且風(fēng)和波浪荷載也可能引起疲勞問題。當(dāng)然，這種區(qū)別會(huì)更明顯的如果試驗(yàn)不再橫截面最后的位置進(jìn)行的話。所應(yīng)用的屈服應(yīng)力不隨厚度而變化。屈服應(yīng)力或許是結(jié)構(gòu)鋼的最重要的強(qiáng)度特性，它隨著鋼材化學(xué) 不同發(fā)生顯著的變化，最重要的成分是碳和錳，兩者都會(huì)引起屈服應(yīng)力的提高。鋼的彈性，同時(shí)保持在這個(gè)線性范圍，完全恢復(fù)。本文分析了簡化計(jì)算方法的過程，對(duì)樁筏基礎(chǔ)的初步設(shè)計(jì)提供了有用的依據(jù)。Some studies have been made regarding the benefits of wider edge line markings(150 to 200 mm versus the standard 100 mm width).The wider markings may particularly benefit older （150到200毫米相對(duì)于100毫米的標(biāo)準(zhǔn)寬度）。Converting shoulder to travel lanes for additional capacity through a short bottleneck section has been shown to significantly reduce congestionrelated accidents on some shoulders for several kilometers, however, has not had the same ，在短程的瓶頸路段為了額外的通行能力，將路肩轉(zhuǎn)變成行車道能顯著減少由道路擁擠導(dǎo)致的交通事故。Any proposed use of lessthanfullstandard crosssection must be analyzed carefully on a sitebysite indicates that lane can operate safely if there are no other lessthanstandard features。Usually, the design speed is established by the most restrictive element of the ramp, typically, the sharpest curve（小半徑曲線）.通常，這個(gè)設(shè)計(jì)速度被匝道的最限制的范圍，典型的是小半徑曲線。Safety improvements on freeways can also result in substantial savings in life and property(生命和財(cái)產(chǎn))because freeways carry 25 percent of the nation’s total ，還會(huì)節(jié)約大量的生命財(cái)產(chǎn)資源，