unscrewing中文什么意思

拧下

• unscrew:    vt.,vi. 起[扭松](…的)螺 ...
• unscrewing mold:    退扣式模具
• automatic unscrewing mold:    自动退扣模具

例句与用法

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1. The officer unscrewed the cap and put the bottle to his nostrils .
   那位官员拧开了瓶盖，把瓶子凑近鼻孔。
2. The russians who cleaned the embassy simply unscrewed the bolts(which were well oiled)on the security door lock and walked straight in .
   负责打扫使馆的俄国人只需打开安全门上的紧锁螺栓（上过不少油），即可径直进入机房。
3. Do not use check arm as a handle to unscrew
   不要用止回阀臂作为把手来旋转螺纹。
4. Unscrew the bonnet by turning counterclockwise
   反时针方向旋转拧松阀盖。
5. Double - wall water heaters with cover to be unscrewed , of steel
   带拧卸盖的钢制双壁热水器