cartridge
n. 弹壳，弹药筒；（机器、设备等可更换使用的）盒，卡；（打印机的）墨盒，（钢笔的）墨水囊；（照相机的）暗盒，（录音机的）磁带盒；（唱机的）唱头，（拾音器的）心座
复数 cartridges
例句
Change the filter cartridge as often as instructed by the manufacturer.
要按制造商要求的频率更换过滤套筒。
《柯林斯英汉双解大词典》
He aimed his rifle, fired a single shot, then ejected the spent cartridge.
他用步枪瞄准，开了一枪，接着排出了空弹壳。
He was attacked by a security man who tried to wrest away a gas cartridge.
一名保安袭击了他，那保安想抢走一个气罐。
