The research results show that too high copper content in the soil will do damage to Milk Vetch.

研究结果表明： 土壤含铜量过高，对紫云英造成危害；

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This area is the geochemical one with high copper background value and has the favourable condition for copper mineralization.

本区为铜的地球化学高背景场区，具有较好的铜矿成矿条件。

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The 93-meter-high copper beauty was a gift from the people of France in 1886, in recognition of the friendship established during the American Revolution.

这座高93米的美丽铜像是1886年法国人民赠送的礼物，为的是弘扬在美国独立战争中建立的友谊。

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Metals with a high copper content, like brass, can also be effective at neutralizing viruses.

WSJ: To Contagions, This Pen Is Deadlier Than the Sword

However, the benefit from high copper prices could be mitigated if manufacturers choose to substitute aluminum for copper to cut costs.

FORBES: Costly King Copper Could Turn Freeport Into A Pauper

One worthy question, however, is whether the current high copper prices sustainable.

FORBES: Grasberg's Copper Quality Could Cost Freeport A Few Pennies