其他的版本还有名为Nibiru的行星撞向我们或者地球磁场翻转等灾难。
In other variations, a planet named Nibiru crashes into us or the Earth's magnetic field flips.
其中还有丝杠的选择和翻转机构的设计等。
And also has guide screw's choice and the turnover mechanism design and so on.
其中还有丝杠的选择和翻转机构的设计等。
And also has guide screw's choice and the turnover mechanism design and so on.
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