咔嗒一声，猎人扳动了枪机。
离开射击地线时要打开枪机（枪栓）。
他伸手摸到那支空枪，瞄准了，扳动枪机。
He reached for his empty gun, aimed, and pulled the trigger.
放开枪机即被封住，这样就可以正常使用。
It is sealed after loosing the trigger so that it can be used normally.
因水阻力较难准确求得，可利用实验确定活动件(枪机)运动总阻力。
The total kinetic resistance of a moving part (a firearm bolt) was acquired by experiment because water resistance was difficult to be got accurately.
若运动员叫靶后没有射击而是打开了枪机，裁判员不需要说或做任何事。
The Referee is not required to say or to do anything if a shooter does not shoot but opens the gun after calling for the target.
采用有限元方法研究了某新型自动步枪枪机闭锁面与节套闭锁面间垂直接触碰撞的动应力。
By using the finite element method, the dynamic stress caused by vertical contact impact between bolt locking surface and barrel extension locking surface of a new rifle was studied.
本发明公开了一种武器的磁力闭锁机构，它包括：复进簧、机匣、后座阻铁、磁体、枪机和枪管。
The invention discloses a magnetic locking mechanism for weapon, comprising driving spring, casing, resistance iron for back seat, magnet, gun action and gun barrel.
本文就氧和固体燃料向电弧炉喷吹的方法，如手动喷枪、喷枪机械手、底部喷吹和水冷喷枪进行了比较。
Methods to inject oxygen and solid materials into EAF, i. e. hand lance, lance manipulator, bottom blowing and water cooled lance, are compared.
水冷喷枪和喷枪机械手已取代了手动喷枪，喷枪机械手是一种向电弧炉喷氧和固体燃料高效而经济的方法。
Water cooled lance and lance manipulator have both replaced the hand lance. The lance manipulator is an efficient and economical tool to inject oxygen and solid materials into EAF.
如果发生了这种情况，要保持枪口朝向安全的方向，并使你的脸远离枪管尾端，小心地打开枪机，卸下哑弹并妥善处理。
If this occurs, keep the muzzle pointed in a safe direction. Keep your face away from the breech. Then, carefully open the action, unload the firearm and dispose of the cartridge in a safe way.
出于某种本能，我将枪从膝上抓起举过了头，至于船长，他用一条子弹带将枪背在了肩上，并且，像一个明智的人所做的那样，枪机冲上。
Mine I had snatched from my knees and held over my head, by a sort of instinct. As for the captain, he had carried his over his shoulder by a bandoleer, and like a wise man, lock uppermost.
出于某种本能，我将枪从膝上抓起举过了头，至于船长，他用一条子弹带将枪背在了肩上，并且，像一个明智的人所做的那样，枪机冲上。
Mine I had snatched from my knees and held over my head, by a sort of instinct. As for the captain, he had carried his over his shoulder by a bandoleer, and like a wise man, lock uppermost.
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