cartridge的解释
n. 弹药筒,弹药,一卷软片
墨水筒，笔芯
cartridge的例句
A heavy paper cartridge case.
弹药箱一种沉重的纸板弹药箱

Such a projectile in a metal casing; a cartridge.
弹药（筒）装在金属盒中的射弹。弹药