safety bolt catch保险销机
safety-catch保险栓
safety y catch断绳保险器防坠器
safety-catch linkers安全制动编辑程序
safety catch holding apparatus缓冲托罐装置
Bonnet safety catch missing引擎盖安全锁
bf type safety catchbf型防坠器
N-COUNT（可数名词） The safety catch on a gun is a device that stops you firing the gun accidentally. 安全不击发装置
Eddie slipped the safety catch on his automatic back into place.
艾迪把自动步枪的保险拉到了位。