It includes the division of dissolving area, the redetermination of its length and width,downhill layout of dissolving area a nd improvement of drilling tunnel and cutting grooves.
包括溶区
划
,溶区长、宽重新确
;溶区间下山布置,以及打眼巷、切割槽改进等。
,再决
词It includes the division of dissolving area, the redetermination of its length and width,downhill layout of dissolving area a nd improvement of drilling tunnel and cutting grooves.
包括溶区划,溶区长、宽重新确;溶区间下山布置,以及打眼巷、切割槽改进等。
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