firing mechanism造句怎么写

3、Featuring a spring piston firing mechanism, the sniper rifle is almost silent when fired.

5、Featuring a spring piston firing mechanism, the sniper rifle is almost silent when fired which gives a vital advantage to snipers who don't want to give away their position.

2、Aim Some questions about the mechanical firing of the firing mechanism in large caliber rotating barrels machinegun are discussed.

1、The bomb's firing mechanism is activated by a time-clock.

4、Now I was touching buttons and the firing mechanism of a visitor from perhaps 100 years ago.