extremely thin coal seam中文，extremely thin coal seam的意思，extremely thin coal seam翻译及用法

2026-07-19 02:15 浏览次数 24

extremely thin coal seam

极薄煤层

extremely thin coal seam 例句

英汉例句

  • This paper mainly describes the development of thin seam coal mining machine, comparing and analyzing thin and extremely thin coal seam coal mining machine techniques.

    本文主要阐述了薄煤层采煤机的发展状况，并对薄煤层及薄煤层采煤机的技术进行了比较分析。

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