mining coal technology是什么意思 mining coal technology怎么读
mining coal technology的相关资料
mining coal technology的用法和样例
- This technology, being an important supplement for longwall mining technology, is called modern shortwall mechanical looping mining technology.
这种技术被视为现代短壁机械化采煤技术，是长壁采煤技术的重要补充。
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