The mechanical model of key strata supported by coal pillar is set up according to the layout of coal pillars in the coalface of shortwallmining.
根据短壁开采条件下保护煤柱的布设特点，建立由保护煤柱支承的关键层力学分析模型。
2
The CLX3 flame proof rubber tyre forklift is one of the key equipments for the matching equipment of the continuous miner applied to the fully mechanized shortwallmining equipment.
型防爆胶轮铲车是短壁机械化开采设备中连续采煤机后配套设备中的关键设备之一。
3
The development and successful application of mobile roof support make ready a new type supporting equipment for mechanized mining of short-wall faces.