v.从…旋出螺丝,旋开,松开( unscrew的现在分词 );
例句:
1、
It can be removed by simply unscrewing with a large pipe wrench.
只需用一把较大的管道扳钳旋下螺纹就可以拆卸底部塞弹簧总成.
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2、
The valve should be able to be removed by unscrewing the valve from housing.
通过从外壳上旋下安全阀应该能够拆卸安全阀.
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3、
Gear operator is removed by unscrewing hex head screws which hold operator to valve body.
通过拧松将操作机构固定在阀体上的六角螺栓来拆卸齿轮操作机构.
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