“炮筒”造句
这种很短的 “
炮筒 ” 有助于减小散布.
This very short " gun barrel " will help reduce dispersion.
你见到 反 坦克炮 吗 ?有橡皮轮胎和长
炮筒的家伙?
Did you see anti - tank guns? Those on rubber tyres with the long barrels?
他们立时动手掘砂模, 掏清
炮筒.
They proceeded at once to extract the interior mould, clearing out the boring of the piece.