太阳自转 meaning in Chinese

solar rotation

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270日为太阳自转周期。
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。
The rotation of the original gas and dust cloud becomes the revolutions of the planets around the sun and the rotation of the sun itself
气体尘埃云原先的转动，成了行星公转和太阳自转的原动力。整个过程大约用了