(It takes about 365 days for the earth to make a complete revolution around the sun.) In contrast, the moon takes 29 days or so to make a complete cycle around the earth.
(地球绕太阳公转一周约365天)，对比起来，月球约用29天左右绕地球一周。
2
It takes approximately four revolutions of Earth around her sun for your solar system to make one revolution around your twelfth-dimensional sun.
地球围绕着太阳转四圈，大约等于你们的太阳系围绕第十二维太阳转一圈。
3
Then the author analyses the effect of the frame vibration and tries to make the natural frequency of vibration beyond the range of engine revolution rate.