exert pressure upon 中文意思是什麼
exert pressure upon
解釋
對. . . 施加壓力-
The feature for honing stick is that a stick will be put into a clamping tool with spring expansion to exert appropriate pressure upon the inner edge of work piece to grind
搪缸砂條研磨特性是將砂條置於夾具內透過彈簧擴張結構作用,施予適當壓力對工作物內緣加工研磨。
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