以矿井中使用的伞钻为例，全面说明了“阵列”这个工具的妙用。
The use of the umbrella-drill, for example, provides a comprehensive picture of the "array" as a tool understand the magic of emulation movement throughout some reference value.
由于煤矿系统无功补偿和谐波污染问题日趋严重，设计了以矿井直流提升机为负载的TCR无功补偿系统。
Due to the problem of reactive power compensation and harmonic pollution becoming serious in mine system, TCR reactive compensation system for load of mine DC elevator was designed.
以矿井提升装载过程中的箕斗和钢丝绳为研究对象，建立了变质量箕斗的运动微分方程及钢丝绳的纵向振动微分方程。
Aiming at wire rope and skip in loading, movement differential equations of skip with different mass and longitudinal vibration differential equations of wire rope were proposed.
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