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关注：1
2013-05-23 12:21
求翻译：预修课程矿石学、选矿概论等。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
预修课程矿石学、选矿概论等。
问题补充： |
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2013-05-23 12:21:38
Ore school preparatory courses, Introduction to mineral processing.
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2013-05-23 12:23:18
Preparatory courses ore dressing introduction to pre-school, and so on.
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2013-05-23 12:24:58
Preventive maintenance curriculum minerology, dressing introduction and so on.
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2013-05-23 12:26:38
Introduction to preparatory courses of ore, mineral processing, and so on.
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2013-05-23 12:28:18
Ore school preparatory courses, Introduction to mineral processing.
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