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[有奖翻译] 有奖翻译
P:2016-10-29 10:11:17
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活跃一下气氛,进行一段时间的有奖翻译 软件翻译不评分
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.
Hot Tin Dip - 热镀锡。最常用的镀锡方法之一,其法是将裸铜线经过酸洗处理后通过融熔之锡槽,使铜线之表面镀上一层锡,可使铜线防止氧化,并使銲接容易。 (0) 投诉
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