开采锡矿
Mining tin ore
以上为机器翻译结果，长、整句建议使用 人工翻译 。
个旧市又被称为“锡都”，拥有悠久的锡矿开采和生产历史。
Gejiu City, called Tin-Capital, has its long history of Tin mining and production.
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锡矿储藏量不但丰富，而且易于露天开采。
Not only is rich, and tin reserves to open mining.
个旧锡矿是何时最早开采的？
When was the Individual Stannary Developed at the Earliest?
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