overburden

overburden

英 [əʊvə'bɜːd(ə)n]

vt. 使負擔過重；使過勞
　　n. 表土（等於burden，capping）；過重的負擔

中文詞源：

overburden 使負擔過重

over-,超過，過度，burden,負擔，擔子。

例句：

1. Overburden had concealed the radioactivity.
覆蓋層屏蔽掉瞭放射性.

2. Soil survey should be adopted in such soil overburden areas.
在此類土壤覆蓋區應采用土壤測量.

3. Overburden pressure for three hundred years , isolated the light of day.
覆壓三百餘裡, 隔離天日.

4. The overburden strata movement is a complicated time and space process.
上覆巖層的運動是一個復雜的時空過程.

5. Microbial oxidation of ores, tailings, and overburden contribute s to ARD.
微生物氧化的礦石 、 料和覆蓋巖層會產生酸性巖排水.