矿业公司应该通过多矿种经营、多国经营来分散风险。
Miners should spread their risks across countries as well as minerals.
我国矿产资源丰富且矿种较齐全，但人均占有量偏低。
Mineral resources in China are rich and of a considerable variety, but the average per capita is low.
需要指出的是，授权审批登记的矿种，不包括石油、天然气和放射性矿产等特定矿种。
It should be pointed out, however, that the local review and registration rights are not applicable to the special types of minerals such as petroleum, natural gas and radioactive minerals.
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