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overburden

vt. 使负担过重；使过劳

n. 表土（等于burden，capping）；过重的负担

中文词源

overburden 使负担过重

over-,超过，过度，burden,负担，担子。

英文词源

overburden (v.): also over-burden, "to put too much weight on," 1530s, from over- + burden (v.). Earliest uses are figurative. Related: Overburdened; overburdening.

中文解释

1、over- "too much, above normal" + burden.

实用例句

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

2. 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.

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

4. The overburden strata movement is a complicated time and space process.: 上覆岩层的运动是一个复杂的时空过程.

5. Microbial oxidation of ores, tailings, and overburden contribute s to ARD.: 微生物氧化的矿石、料和覆盖岩层会产生酸性岩排水.

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