American western mining is one of the most important events in American western exploitation.
美国西部的采矿业是美国西部开发的重要组成部分之一。
Western China is abundant in mineral resources which offer very high potential for exploitation.
西部地区矿产资源丰富，具有很高的开发利用价值。
Western China is abundant in mineral resources which offer very high potential for exploitation.
西部地区矿产资源丰富，具有很高的开发利用价值。
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