Migration helped create humans, drove us to conquer the planet, shaped our societies, and promises to reshape them again.
移民帮助创造了人类,驱使我们征服了地球,塑造了我们的社会,并承诺再次改变他们的形态。
It is called the Great Migration, and it is widely considered one of the most spectacular assemblies of animal life on the planet.
这叫做“大迁移”。这被广泛看作这个星球上最壮观的动物集结之一。
When the planetary migration occurs under the tidally interaction of a planet and a disk of gas or a planetesimal, the orbital parameters, especially, semi-major axis, of this planet will be altered.
行星迁移发生在行星与气体或星子的星盘之间进行潮汐相互作用时,这造成行星轨道参数,特别是半主轴的变更。
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