earths造句

Diatomaceous earths are the skeletal remains of the tiny aquatic plants deposited centuries ago.
硅藻土是百年前水生植物沉淀下来的遗骸.

Belts of mountains are cause by movements in the earths crust.
山丘带是由地壳移动而形成的.

Rare Earths Group of South and North in Miscarry Now?
南北稀土集团就这样流产了 吗 ?

An iron case will keep the Earths field away from the compass.
铁箱能使地球磁场不受指南针的影响.

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