overburden的例句（overburden在句子中的用法）

• Overburden pressure for three hundred years , isolated the light of day. 覆压三百余里, 隔离天日.
• 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 had concealed the radioactivity. 覆盖层屏蔽掉了放射性.