中期评价
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middle stage evaluation
以上为机器翻译结果,长、整句建议使用 人工翻译 。
Research works on evaluation of coal resources in middle exploitation stage have been conducted and the basic rules and thoughts have been brought forward. Based on these, No.
对处于开发中期阶段的煤炭资源评价进行研究,提出了建立开发中期煤炭资源综合评价体系的基本原则和思路。
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