rotary

1. ADJ Rotary means turning or able to turn around a fixed point. 旋转的[ADJ n]

...turning linear into rotary motion. …变直线运动为旋转运动。

2. ADJ Rotary is used in the names of some machines that have parts that turn around a fixed point. 转… (用于机器名)[ADJ n]

...a rotary engine. …一台转缸式发动机。