cylinder /ˈsɪlɪndə/ CET6 TEM4

• 1. 

  N-COUNT A cylinder is an object with flat circular ends and long straight sides. 圆柱

  例：

  It was recorded on a wax cylinder.

  它被刻录在了蜡柱上。

• 2. 

  N-COUNT A gas cylinder is a cylinder-shaped container in which gas is kept under pressure. (气) 罐

  例：

  ...oxygen cylinders.

  …氧气瓶。

• 3. 

  N-COUNT In an engine, a cylinder is a cylinder-shaped part in which a piston moves backward and forward. 汽缸

  例：

  ...a four-cylinder engine.

  …四缸发动机。