heel of switch 中文意思是什麼
heel of switch
解釋
轉轍軌跟端-
8. should the optional switch is selected of heel seat cementing and no cementing, side cementing or no cementing or side and heel seat cementing or no cementing separately
8 .本機並可選擇單獨使用后幫中幫中后幫之擦膠興不擦膠之操作方式。 -
Heel of switch
轉轍軌跟端
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