其他防爆方法如隔爆型(Ex d)、增安型(Ex e)或无火花型(Ex n)都必须断电维护。后来,随着应用规模越来越大,出于对应用成本的考虑,防爆方法的准用逐渐扩大。
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Introduction A18 增安型电气设备(Ex e) 增安型电气设备是一种在 正常条件下不会产生电弧,火花或 可能点燃爆炸性混合物的高温的 设备结构上,采取措施提高安全程 度,以避...
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ex-e-x 双曲正弦
ex e synchronous motor 增安型同步电动机
ex-resident E of china 前中国居民
ex-change e for physicals 期货换现货
Ex-broker and NASD arbitrator Joseph E.
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Leave column E blank on all but the 4 days a year that the ETF does not go ex-dividend.
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