Through surmounting solves the technology knotty problem of retrieving coal column of mining area with the system mechanization mining technique. By application in mining process the effect is better.
通过攻关，解决了综采工艺回收盘区煤柱的技术难题，经过在开采过程中的应用，效果良好。
First, the status quo has been discussed from the aspects of agricultural machinery, the mechanization level and the service system.
从农业机械装备、农业机械化水平和农机化服务体系三个方面论述了我国农业机械化的现状。
The flat land and sparse population and relative lean soil cause forest management to depend on mechanization and intensive cultivation and old-aged harvest system.
土地平整、人口稀少、土壤肥力较低，是该林业公司机械化作业、集约化经营、主伐年龄较大的缘由。
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