overburden造句

Overburden had concealed the radioactivity.
覆盖层屏蔽掉了放射性.

Soil survey should be adopted in such soil overburden areas.
在此类土壤覆盖区应采用土壤测量.

Overburden pressure for three hundred years , isolated the light of day.
覆压三百余里, 隔离天日.

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