open height是什么意思

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用法例句

Roof accident controlling by using hydraulic support with heavy flow;

利用大流量液压支架控制顶板事故的发生

The paper analyses a few serious problems affecting performance of ZY6000/26/52 thick-seam powered supports from respects of design and application and introduces three main technical innovation of the powered support.

从设计和使用角度分析了ZY6000/26/52型大采高液压支架在使用中产生的严重影响其支护性能的原因,介绍了该型支架的3项主要技术改造措施。

Study on stability technology of hydraulic support in fully-mechanized caving working face with large dip angle;

大倾角综放工作面液压支架稳定性技术探讨

Light type caving coal hydraulic support structural characteristic and discussion on canopy structural design;

轻型放顶煤液压支架结构特点和顶梁结构设计的探讨

Research on Mining Technology with High Mining Height and Development of Powered Support for High Mining Height

大采高技术与大采高液压支架的开发研究

The Study on the Adaptability and Analyze the Structural Intensity Using FEA Method of High Cutting Hydraulic Power Support;

大采高液压支架适应性及结构强度有限元分析

Stability Analysis and Control Methods on Above 6 m Hydraulic Supports with Large Mining Height

6m以上大采高液压支架稳定性分析与控制措施

Study on Adaptability of Shield Support in Large Cutting Height Working Face;

两柱掩护式大采高强力液压支架适应性研究

Research and Application on High Mining Height Four Link Forepoling Hydraulic Support

大采高四连杆超前液压支架的研制与应用

Coordination of Full-mechanized Mining Equipments and Powered Support Design for Extremely Thin Coal Seam with Large Angle

大倾角极薄煤层综采设备配套及液压支架设计

Practice of Large Mining Height Hydraulic Prop Supporting Face

大采高单体液压支柱工作面支护型式实践

Determination of the Parameters for the Selection of Hydraulic Supports for Fully-mechanized Face at Shallow Depth

浅埋深综采液压支架选型及参数确定

Experimental Investigation on Adaptability of Shield-type Support in Fully Mechanized Coal Face

综采工作面液压支架适应性试验研究

Design of Key Components of Hydraulic Roof Support Mining Total Height under "Three Soft" and Unstable Coal Seam

三软不稳定煤层一次采全高液压支架关键部件设计

Special Thick Seam Mining Hydraulic Support Shaping Design in Datong Coal Field

大同煤田特厚煤层开采工作面液压支架选型设计

Improving Extraction Technology By the Support of Comprehensive Mining;

普通综采支架加大采高回采技术实践

Design on Underground Host Computer of Electro and Hydraulic Control System for Hydraulic Powered Supports in Fully Mechanized Coal Mining Face

综采面液压支架电液控制系统井下主机的设计

Design on Electric and Hydraulic Control System of Hydraulic Powered Support for Fully Mechanized Longwall Mining Face

综采工作面液压支架电液控制系统设计

Study of Long-range Monitor System of Synthetical-exploit Hydraulic Support Pressure;

综采液压支架压力远程监测系统的研究

Research of Mine Hydraulic Support Data Collection and Early Warming System;

矿用液压支架数据采集与预警系统的研究

The Design of Transport Vehicle Hydraulic System for General Coal Mining Support Powered by Loader Towing

装载机牵引式综采支架搬运车液压系统设计

Adaptability of Hydraulic Support in Fully Mechanized Caving Under Complicated Geological Conditions

复杂地质条件下综采液压支架适应性研究