pillar system meaning in English
柱式采矿法
柱式开采法
Examples
- The roof of cavern is regarded as an elastic beam with support at the midpoint and the coal pillars are regarded as bearings so as to establishing a cavern roof - coal pillar system
摘要将顶板视为中点有支承的弹性固结梁，将煤柱视为支座，形成了顶板煤柱系统。