由于机电型继电器的功能容易描述，这里借用对机电装置性能的说明代表对继电器和继电系统进行总体描述。
Because the functions of electromechanical devices are easily described, their performance wills ever as a basis for presenting a description of relays and relay systems in general.
由于机电型继电器的功能容易描述，这里借用对机电装置性能的说明代表对继电器和继电系统进行总体描述。
Because the functions of electromechanical devices are easily described, their performance wills ever as a basis for presenting a description of relays and relay systems in general.
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