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但是,我們把電感器看作是通過其電感量L表現(xiàn)為時域形式而通過其阻抗表現(xiàn)為頻域形式,電容在時域里為電容量C而在頻域里為,阻抗是某種程度上的頻域變量而非時域變量。而這種方法被稱為疊加法。只有當需要強調(diào)元件性質(zhì)的時候才使用更長的形式稱呼它。(介賓從句)The fact that everything around us is matter is known to 。(定語從句)The instrument that we often use is very good in 。(賓語從句)The fact is that radio waves travel as fast as light 。(動名詞作表語)When an electric current flow through a wire it meets some ,它會遇到某種阻力。 plants fueled by uranium account for a continually increasing share of the load, but their construction is slow and uncertain because of the difficulty of raising capital to meet the sharply rising cost of construction, constantly increasing safety requirements which cause redesign, public opposition to the operation of the plants, and delays in through a circuit, the current will lose part of it ,要損耗掉一部分能量。 plants can cause low dissolved oxygen levels in the water, a problem that is harmful to riverbank ——(這是)一個對岸邊生存環(huán)境有害的問題。, loads are devices those consume electric energy or electric power consumed by customers mainly in distribution ,負荷是主要在配電網(wǎng)中消耗電能的設(shè)備或者由用戶消耗的功率。電容的測量單位是法拉?!癆 per unit of B” 表示 “單位B上的A” 或者“A/B”。, the capability of lines of the same length varies at a rate somewhat greater than the square of the ,長度相同的線路的容量,以比電壓的平方略大的比率變化。3)The testing of a crossfield generator will be described in this section with chief reference to the tests that are normally taken on every machine before it leaves the makers ,它主要涉及每臺電機在離開制造廠前應(yīng)進行的試驗。2)As illustrated in , there is a feedback element in the closedloop in , there is a feedback element in the closedloop ,這個閉環(huán)系統(tǒng)中有一個反饋元件。3)The transistor, which is working with correctly polarities, can work as an transistor working with correctly polarities can work as an ,作用就像放大器。4)Changing resistance is a method for controlling the flow of the 。電容的測量單位是法拉。2)Instrument transformers are installed on the highvoltage 。有些土由于缺少排水及他們自身的性質(zhì),在任何情況下都可能變?yōu)榱黧w(不管形成的流體材料是大面積的還是僅僅靠墻的一條窄層);這些土的壓力和與其具有同樣密度的流體的靜水壓力相等。然而,和試驗結(jié)果相比則表明計算結(jié)果對負超載情況有點偏小,對正超載情況有點偏大,但是相差不超過10%。就任意土體材料來說,作用在常見擋土墻上的主動土壓力水平分量可由針對墻背豎直、墻后填土面基本水平的一般土壓力楔體理論很好地給出。靜止土壓力是土體施加給不屈服豎直擋土表面的水平壓力。也可能是地球的壓力造成的垂直分量的支持時,面對的不垂直,地面是傾斜的或在墻上摩擦是包括在內(nèi)。上述給出的安全系數(shù)的運用是設(shè)計的傳統(tǒng)方法,在1994年推薦的極限狀態(tài)方法要求對強度代表值運用一個調(diào)節(jié)系數(shù)來獲得設(shè)計值,例如,%的墻高,承載能力計算時M應(yīng)該在2到3之間。 Pressures重力式傳播的穩(wěn)定條件設(shè)計必須考慮的不是最終或使用極限狀態(tài),計算表明,必須有足夠的經(jīng)費是對發(fā)生不良極限狀態(tài)有關(guān)一個特定類型的墻體了。脆性破壞的危險可以由選擇適合溫度下延性的鋼材類型來降低,或者通過由減小應(yīng)力集中和幾何約束的觀點來設(shè)計節(jié)點。高集中應(yīng)力促進裂縫開展,所以由不良的幾何形狀和荷載布置引起的應(yīng)力集中都很危險,而且材料的裂紋和缺陷也非常重要。更嚴重的是快速不穩(wěn)定傳播的裂縫,因為儲存在鋼材中的固有的彈性應(yīng)變能被釋放并用來使鋼材破壞。它也將有利于限制,如可行,接頭的地點,如在接近中性軸點,低應(yīng)力區(qū)。顯著影響疲勞強度的因素有荷載循環(huán)次數(shù),荷載循環(huán)中的應(yīng)力幅以及局部應(yīng)力集中的大小。通常認為,單向拉伸所確定的屈服應(yīng)力對單向壓縮也正確。每種鋼材的最小屈服應(yīng)力是根據(jù)一系列的標準拉伸試驗的結(jié)果確定的。屈服應(yīng)力隨著熱處理方法和壓制過程的工作量而變化,在同樣的條件下壓制次數(shù)多的薄板的屈服應(yīng)力高于較厚的鋼板。該線彈性特性的限制,通常近似屈服應(yīng)力約200000MPA,以及相應(yīng)的范圍內(nèi)。它包括兩個階段:;。更寬的標記對老司機尤為有利。然而減少幾公里長的路肩寬度,得不到同樣的的結(jié)果。however, bined with shoulderwidth reductions, substandard sight distance, and other features, lanes may not provide the same safe 。Whatever design speed is selected, adequate transitions(轉(zhuǎn)變、過渡)from the freeway proper and at the ramp terminal(末端、末尾)or merge point(合流點)should be ,都應(yīng)該發(fā)展來自高速公路本身的和在匝道末尾或者合流點的合適的過渡。Selecting the design speed for a freeway is an important safety element because most geometric criteria(準則,標準)related to or depend on In general, 110 kilometers per hour(km/h)should be the design speed for the mainline of a freeway , but it may need to be lower in areas of severe terrain or heavy ,110千米每小時應(yīng)該作為高速公路主干道的設(shè)計速度,但是在崎嶇的地區(qū)或者施工難度大的地區(qū)可能需要降低。微粒的能力產(chǎn)生影響能起肺病第二篇:專業(yè)英語翻譯Freeways,especially those built to Interstate standardsare the safest of the various classes of , control of access, which limits vehicle conflicts(車輛沖突), isa primary factor in relatively low accident, injury,and fatality rates(事故,死亡率), other design features, such as wide medians and shoulders roadsides clear of obstructions, and the extensive us