| 释义 |
longwall 英'lɒŋwɔːl美'lɒŋwɔːl BNC⁹⁷²³³⁺⁷
基本例句
adj.矿长壁开采法的
The key technology of longwall remaining coal pillars support mining is to distinguish two kinds of coal pillars of different character between regional coal pillar and isolated coal pillar.
长壁留煤柱支撑法开采的关键技术是区分两类不同性质的煤柱， 即区内煤柱和区域间的隔离煤柱。 cnki
Based on the local, migratory and subsection characteristics of main roof fall of longwall face, the main roof was divided into some plate group, and plate group mechanical model was established.
针对长壁工作面顶板垮落具有局部、分段、迁移的时空特征， 将长壁工作面采场顶板划分成若干个相互铰接的薄板，建立了薄板组力学模型。 cnki |