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维基
百科
丝扣 [sī kòu]
screw thread
- 定位模板拆除时，应水平往上抬升，防止碰坏螺栓丝扣。
When removing the positioning form, lift it up horizontally to avoid hurting screw threads of anchor bolts. - 爆炸所产生的力使母扣扩大，足以使丝扣连接处瞬时松开。
The force of the explosion enlarges the female (outer) thread enough that the threaded connection unscrews instantly. - 为进行打捞或回收钻柱，通常的卸开作业总是采用反扭矩，和在所选用的丝扣连接内引爆炸弹。
To facilitate the fishing or recovery operation, the backoff is usually accomplished by applying reverse torque and detonating an explosive charge inside a selected threaded connection.
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