Getting the digging and processing equipment to the site costs millions, and then tons of gold must be produced and preferably other valuable minerals must also be present for a mine to be profitable.

挖掘和处理设备就需要花掉数百万美元，要实现盈利就必须开采出成吨的金子，其他有价值的所含矿物也必须尽可能的被利用。

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The pilot plant of Tanyaokou pyrite Mine is designed for processing single element pyrite ores.

炭窑口硫铁矿选矿试验厂是为处理单一硫铁矿而建的选矿厂。

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After the time series fuzzy fractal processing of the mine gas emission quantity, the non linear relations of the influence factors were combined with BP neural network.

通过对矿井瓦斯涌出量时间序列的模糊分形处理，用BP神经网络对影响因素间的非线性关系进行拟合。

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There has long been opposition to the prospect of a gold mine and processing plant being built at Skouries in the Halkidiki peninsula, with some residents objecting to what they say will be the destruction of the environment and of pristine forest in the area, leading to the loss of tourism and other local activities such as farming, the rearing of livestock and fishing.

NPR: Masked Intruders Raid Greek Gold Mining Company

Palladium capacity worldwide is likewise expected to increase an additional 16, 000 kg in Russia, 14, 000 kg in South Africa, 4, 000 kg in Zimbabwe, and 1, 000 kg in Canada if new or expanded mine and associated processing capacity comes into production as planned.

FORBES: USGS: Sources Of PGMs From South Africa, Russia Likely To Change

Mineral extracted at the mine would be transferred underground for processing on Teesside about 35 miles (56km) away.

BBC: Artist's impression of mine buildings site