有獎(jiǎng)翻譯 - 無(wú)圖版
appleseden --- 2016-10-29 10:11:17
1
活躍一下氣氛，進(jìn)行一段時(shí)間的有獎(jiǎng)翻譯 軟件翻譯不評(píng)分
One of the most important advantages of aluminum, other than economics, is its low density. A unit length of bare aluminum wire weighs only 48% as much as the same length of copper wire having an equivalent DC resistance. However, some of this weight advantage is lost when the conductor is insulated, because more insulation volume is required over the equivalent aluminum wire to cover the greater circumference.
wei2015 --- 2016-10-29 10:30:01
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除了經(jīng)濟(jì)性之外，鋁的最重要的優(yōu)點(diǎn)之一是其低密度。 裸鋁線的單位長(zhǎng)度僅等于具有等效直流電阻的相同長(zhǎng)度的銅線的重量的48％。 然而，當(dāng)導(dǎo)體是絕緣的時(shí)，這種重量?jī)?yōu)點(diǎn)的一些喪失，因?yàn)橄鄬?duì)于等同的鋁線需要更大的絕緣體積以覆蓋更大的圓周。
lgzh63 --- 2016-10-30 07:58:41
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相較于經(jīng)濟(jì)型，鋁最重要的一個(gè)優(yōu)點(diǎn)是密度低。當(dāng)?shù)刃е绷麟娮柘嗤瑫r(shí)，相同長(zhǎng)度的鋁線的重量只有銅線的48%。然而當(dāng)有絕緣時(shí)，這種優(yōu)點(diǎn)喪失了，因?yàn)榇藭r(shí)需要更大的絕緣體積以包覆更大的鋁線圓周。
-- 結(jié)束 --