1. 弹壳;弹药筒
A cartridge is a metal or cardboard tube containing a bullet and an explosive substance. Cartridges are used in guns.

2. (机器、设备等可更换使用的)盒，筒
A cartridge is part of a machine or device that can be easily removed and replaced when it is worn out or empty.

1. ammunition consisting of a cylindrical casing containing an explosive charge and a bullet
fired from a rifle or handgun

2. an electro-acoustic transducer that is the part of the arm of a record player that holds the needle and that is removable

Synonym: pickup

3. a module designed to be inserted into a larger piece of equipment

e.g. he loaded a cartridge of fresh tape into the tape deck

4. a light-tight supply chamber holding the film and supplying it for exposure as required

Synonym: magazine