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關注：1
2013-05-23 12:21
求翻譯：The present invention relates to the art of coal production, and, in particular, to the art of controlling dust and spontaneous combustion resulting from production, drying, handling, and transportation of coal.是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
The present invention relates to the art of coal production, and, in particular, to the art of controlling dust and spontaneous combustion resulting from production, drying, handling, and transportation of coal.
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