中心点火管传火孔射流场直接影响火炮膛内的点火传火过程。
The jet flows from vent holes in a center-core igniter strongly influence the process of ignition in guns.
于是他放低他的卡宾枪，瞄准那个正俯身在炮膛口校正方位的炮长。
And, lowering his rifle, he took aim at the captain of the gun, who, at that moment, was bearing down on the breach of his gun and rectifying and definitely fixing its pointing.
但由于该炮膛压较高，使得钢质药筒的变形加大，不抽筒率超标严重。
But because the chamber pressure of this gun is high, the deformation of the steel cartridge case is enlarged, and the extraction ratio cannot reach the standard.
应用推荐