1.
Venus rotates very slowly with the result that its cycle of rotation reaches as long as 243 days of the Earth.
金星的自转极慢，以致金星的自转周期长达二百四十三个地球日。
2.
Seen from the earth, the sun rotates in about 27 days.
从地球上观测，太阳的自转周期约为27天。
3.
Confirmation of the Relationship between EW(Li) and Rotational Period for WTTS;
WTTS锂线等值宽度与自转周期关系的验证
4.
Extrapolating backward, it was born rotating once every20 milliseconds.
因此回溯到它刚诞生的时候，自转周期应是20毫秒。
5.
For geophysical purposes it is customary to use solar rotations of 27. 0 day.
为适应地球物理学的需要，习惯上以27．0日为太阳自转周期。
6.
Astronomical yearbooks and calendars for amateur astronomers provide the times of the beginning of the synodic solar rotations as well as the longitudes Lo.
天文年历和日历为业余天文学家提供了太阳会合自转周期的始时和经度Lo．
7.
law of isochronism
等周期定律 -天体自转
8.
period of cycle of steady motion
稳定运转循环的周期
9.
The tilt of the planet's spin axis oscillates by as much as20 degrees over a period of125,000 years.
火星自转轴的倾角，以12万5000年为周期，变化达到20度。
10.
Another kind of period variation,"Glitches," are seen in several pulsars.
在几个脉冲星中还看到了周期的另一种变化，即“自转突快”现象。
11.
The pulsar rotates once every 33 milliseconds and is currently slowing at a rate of about 1.3 millisecond every century.
该波霎每33毫秒自转一周，其周期目前正以每世纪1.3毫秒的速率变慢。
12.
short-term autostabilizatio
短周期运动的自动稳定
13.
dead-beat adaptive control
非周期性自适应控制
14.
periodic-automatic reclosing equipment
周期性自动重合闸装置
15.
Transition in the Periodic,quasi-Periodic and chaotic calcium oscillations
周期,准周期和混沌的复杂钙振荡之间的转换
16.
The moon turns completely around only once during each circuit of the earth.
月球在绕地球转一周的同时，也正好自转了一周。
17.
The earth rotates once a day on its axis.
地球绕它的自转轴一天旋转一周。
18.
The computation of operating cycle is based on the receivable turnover and the inventory turnover.
营业周期的计算是以应收账款周转率和存货周转率为基础的。