撤回者；缩回物
retractors — plural of retractor
撤回者；缩回物
撤回者；缩回物
One who, or that which, retracts.
后膛枪炮中从枪管退出弹壳的装置
In breech-loading firearms, a device for withdrawing a cartridge shell from the barrel.
一种国际象棋谜题,要求撤回若干步后达成另一种局面
A chess puzzle in which a number of moves are retracted and the solver is challenged to reach an alternate outcome.
用于拉开切口或伤口边缘的外科器械
A surgical instrument used to hold apart the edges of an incision or wound.
用于保护软组织免受手术锯损伤的绷带
A bandage to protect soft parts of the body from injury by a surgical saw.
使身体任何部位缩回的肌肉
A muscle serving to draw in any part.
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