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继电器的动作电流与返回电流的比值,叫继电器的
继电器的动作电流与返回电流的比值,叫继电器的
正确答案:×返回系数。
标签:
继电器
电流
比值
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Many words of the basic word stock enter quite a number of set expressions, idiomatic usages, proverbial sayings and the like.Take heart for example: break one"s heart; heart and soul. This example shows basic word stock is characterized by()
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In Robinson Crusoe,() is saved by Robinson and soon becomes a loyal servant of him.