underground-shovel
... 地下水流 Underground water course 坑内用铲 Underground-shovel 底层防水膜 Underlay ...
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矿工们挖去表层土，然后把这些闪着点点金光的粘土铲进一个灰坑内，用酸来提取出稀土矿。
Miners scrape off the topsoil and shovel golden-flecked clay into dirt pits, using acids to extract the rare earths.
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