sliding roof control 活动车顶操纵件
FZD Roof control panel 车顶功能中心
roof control by wall-shape pillar [矿业] 煤柱支撑顶板法
pneumatic filling roof control [矿业] 风力充填法控制顶板
Electric roof control 电动车顶控制系统
roof-control 顶板预控
roof control box 笼顶控制盒
pre-roof-control 预控顶
top roof control 顶板控制
Roof control units 车顶控制单元
The roof control design method may be used in mines with similar conditions.
采用的控顶设计方法可以在类似矿井条件下推广应用。
The roof control design in mined field is the key to roof control and the movement rule of roof terrane is the basis of the roof control design.
采场控顶设计是顶板管理的关键因素,而顶板岩层的运动规律是采场控顶设计的依据。
According to the studying and acquainting with the direct roof control of Datong mining area, this paper offers a kind of simple and workable classification for direct roofs.
根据作者对大同矿区直接顶板控制的研究和了解,提出了一种简单易行的直接顶分类方法。
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