Leaders aren't born, they are made. They are made by hard effort, which is the price which all of us must pay to achieve any goal which is worthwhile - Vince Lombardi, American Football Coach
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連接器的基本性能

連接器的基本性能可分爲三大類:即機械性能、電氣性能和環境性能。、 1、  機械性能:就連接功能而言,插...
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