煤层露头

1
seam outcrop
... seam leader 指示层 seam outcrop 煤层露头 seam roof 煤层的顶板 ...
2
outcrop of coal seam
公布中文名称：煤层露头 英文名称：outcrop of coal seam 定义：煤层出露地表的部分。应用学科：煤炭科技（一级学科）；煤田地质与勘探（二级学科）；煤田地质勘探（二级学科）地下煤层延伸到地表或山体断层外的

1
对于更进一步研究煤层露头火区氧气输运、逾渗规律、露头火灾机理具有积极意义。
The results is useful to carry out the re-search on the combustion mechanism in coal outcrop.
2
根据外因条件不同将乌达矿区16个火区划分出大矿采空区起火、小煤窑起火和煤层露头起火3种类型；
According to different external conditions, 16 fire blocks are divided into 3 types: mine vacant space fire, small coal-pit fire and seam outcrop fire.
3
露天矿产，尤指煤矿，它的煤层或露头接近于地表，除去表土和覆盖层即可发现。
An open mine, especially a coal mine, whose seams or outcrops run close to ground level and are exposed by the removal of topsoil and overburden.

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