1. 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。
2. 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。
3. 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。
4. While serving a compulsory stint in the military, Nurmi entered a 20-k march carrying a rifle, a cartridge belt, and a knapsack. 在军中服义务役的时候,努尔米带着一支步枪、一条子弹带和一个背包参加了20公里行军。
5. Cartridge fuse is a fuse cased in a tube. 筒式熔断器是套在管中的熔断器。