supporting pillar的意思|示意
支撑柱；支撑支柱/顶出支柱；支承矿柱
supporting pillar相关短语
1、 supporting pillar installation 支座安装
2、 pillar supporting method 煤柱支撑法
3、 coal pillar and supporting parameter 煤柱和支护参数
4、 supporting coal pillar 支撑煤柱
5、 pillar supporting mining 刀柱采煤法
6、 Al-based pillar-supporting 铝柱撑