复土的拼音是fù tǔ，注音是ㄈㄨˋ ㄊㄨˇ，意为谓掘穴下棺，以所出土覆于棺上为坟，建陵墓。
作物产量也随复土厚度增加相应增加。
The crop yield increases with the thickness of covered soil increasing.
土中结构顶部的荷载与复土层中应力波的传播相关联。因此，必须考虑结构-介质的相互作用。
As the load action on the roof of a structure and the propagation of the stress waves in soil cover are interdependent, the structure-medium interaction must be considered.
硅藻土具有无数的小孔和复孔，其孔隙率为80-90%，这就为截留固体颗粒提供了较大的空间。
With countless holes diatomite and complex hole, its pore rate for 80-90%, this is the intercept solid particles provide larger space.
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