retractors

核心释义

1. 1.

   撤回者；缩回物

   One who, or that which, retracts.

2. 2.

   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.

3. 3.

   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.

4. 4.

   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.

5. 5.

   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.

6. 6.

   使身体任何部位缩回的肌肉

   A muscle serving to draw in any part.

后膛枪炮中从枪管退出弹壳的装置；一种国际象棋谜题,要求撤回若干步后达成另一种局面；用于拉开切口或伤口边缘的外科器械；用于保护软组织免受手术锯损伤的绷带；使身体任何部位缩回的肌肉