汽车上的离合器在正常行车时，是处在紧密接合状态，离合器应无滑转。
Clutch on the car in normal driving, is in a close bonding state, the clutch should not slip.
铜螺母与弹性阀门采用嵌入式接合，使二者紧密接合为一体，不因水流动造成震荡而产生松动或损坏现象。
The copper nut and resilient are connected by embedded way, two parts closely integrated into one body, hardly loose and damage by shock from water flowing.
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