open simplex 中文意思是什麼
open simplex
解釋
開單形-
The mechanical locked spindle and bulbed blind rivet is assembled in the airplane where the position is not open, can only be rivetted from the simplex side
機械鎖緊鼓包型抽芯鉚釘可裝配在飛機不開敞,只能單面鉚接的部位。
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