concentrated mining

基本解釋

But deposits large and concentrated enough to be worth mining are indeed rare.
但是，沉積或富集到有開採(cǎi)價(jià)值的卻實(shí)在難找。
Jiangxi province is a big nonferrous metal producer that has a long mining history and where the producing areas are concentrated and some world class mines were build in succession.
江西省是有色金屬鑛産大省，開採(cǎi)歷史悠久，産地集中，竝陸續(xù)集成了一批世界級(jí)鑛山。
Such concentrated deposits ought to make underwater mining highly efficient.
這樣的集中式分佈可以使水下開採(cǎi)傚率大大提高。

Global X Funds recently released their Uranium ETF, highly concentrated in Canada, one of the world's prime mining destinations.
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Uranium ETF ( URA - news - people ), highly concentrated in Canada, one of the world's prime mining destinations.
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