1. | 圆柱;圆柱体;圆筒a solid or hollow figure with round ends and long straight sides |
2. | (尤指用作容器的)圆筒状物an object shaped like a cylinder , especially one used as a container |
a gas/oxygen cylinder 气罐;氧气瓶 |
3. | (发动机的)气缸the hollow tube in an engine, shaped like a cylinder , inside which the piston moves |
a six-cylinder engine 六缸发动机 |