The rational decision of mining capacity is one of the key technologies in super-huge coal mine with durative, steady and high efficiencyproduction.
特大型矿井持续稳定高效生产的关键技术之一是其开采规模的合理确定。
2
It has advantages of advanced structure, smooth working reliable, safe operation, convenient maintenance, stepless governing, high-efficiencyproduction and etc.
封口具有结构先进、工作平稳、可靠、操作安全、维修方便、能无级调速、生产效率高的特点。
3
The frequency changer on the harbor machinery nimble, the widespread application has become the harbor hoisting machinery realization to be stable, the high efficiencyproduction foundation.