rotation

[rəu'teiʃən]

n.旋转, 循环

例句与用法：

An instrument used to measure the rotation of the plane of polarization of polarized light passing through an optical structure or sample.

偏振计; 旋光计用来测量经过光学结构或样品的极化光的偏振平面旋转的一种仪器

The chairmanship of the committee changes in rotation.

委员会主席一职是轮流担任的。

The seasons follow each other in rotation.

四季循环交替。

The rotation of crops keeps the soil healthy and fertile.

谷物轮种使土壤保持了肥力和高质。

词形变化：

形容词: rotational |

详细释义：

n.[U][C]

1. 旋转; 【天】自转

The sun appears to rise and set because of the earth's rotation.

因为地球在自转, 看上去就有了日出和日落。

2. 循环; 轮流, 交替; (农作物的)轮作

the rotation of kitchen chores

轮流做厨房里的杂务

短语词组：

in rotation

1. 循环

The seasons follow each other in rotation.

季节循环交替。