During the intake or admission stroke, the piston moves downward as a charge of combustible fuel and air is admitted into the cylinder through the open intake valve.
在摄入或中风入院，活塞动作，作为燃料和空气中可燃负责向下是进入气缸通过公开承认，进气阀。
2
Hence it provides high dense explosive charge in guns using combustible cartridge case for a new type of ignition method.
从而为采用可燃药筒的高装填密度火炮装药提供了一种新型点火理论与方法。
3
This paper analyses the effective factors and restricted methods of combustible cartridge case charge on muzzle velocity probable error.