Study on reasonable support density in hydralic single prop faces;
单体液压支柱工作面合理支护密度的研究
According to the existing conditions of coal seam and observation result of mine pressure,after determining suppor intensity,the selection of reasonable support way and determination of reasonable support density play important roles for face roof management.
回采工作面支护方式因工作面的支护地点不同分为一般支护和特殊支护,根据煤层赋存条件和矿压观测结果,确定工作面支护强度之后,合理支护方式的选择、合理支护密度的确定对于回采工作面的顶板管理起着非常重要的作用。
The choice of the hydraulic prop,the collocation manner and the craftwork parameter analysis of the hydraulic prop working face were analysed,concrete methods of the reasonable supporting density of the working face were put forword.
通过分析支柱规格的选择、支柱布置方式和工作面工艺参数,以实例确定了工作面合理的支护密度,对类似的支护设计有借鉴意义。
This system can decrease supporting density, improve driving speed, reduce labor density, optimize scale of protective pillar and ultimately mine coal resource.
通过理论研究,采用高强度、高刚度强力锚杆支护系统能有效地解决受动压影响巷道支护技术难题,减小锚杆支护密度,提高掘进速度,减轻工人劳动强度,并能优化护巷煤柱尺寸,最大限度地开采不可再生资源。
Support Density Calculation and Roof Management in Blast Mining Face
炮采工作面支护密度计算及顶板管理
Analyse and design of the supporting density on the individual hydraulic prop working face
单体液压支柱工作面支护密度的分析与设计
All data sent between the client and the server is protected by encryption based on the maximum key strength supported by the client.
根据客户端支持的最长密钥长度，所有在客户端和服务器之间发送的数据都受加密保护。
Jacket: Black low mid or high density polyethylene.
护套:黑色低密度或中密度或高密度聚乙烯。
FEM Analysis on Thermal Stress in Strut of Foundation Pit;
基坑支护支撑温度应力的有限元分析
Fiber laser precision cutting of stainless steel stent of high linear density
光纤激光精密切割高线密度不锈钢支架
Study on Relative Relationship Between Support Strength of Hydraulic Powered Caving Support and Thickness Mined in Seam
综放支架支护强度与煤层采出厚度关系的研究
Population densities, distribution and conservation of black muntjac in Jiulong Mountain Natural Reserved Area
九龙山自然保护区黑麂的种群密度、分布与保护
The temperature sensor is enclosed in a protective well.
温度传感器密封在保护套管中。
Research on the Noncompete System in the Protection of Business Secrets;
商业秘密保护中的竞业禁止制度研究
US and China Trade Secrete Protection Law Comparative Study;
中美商业秘密法律保护制度比较研究
Research on Trade Secrets Protection under TRIPs;
TRIPs协议下商业秘密保护制度研究
On Perfecting System of Business Secret Protecting in China;
试论对我国商业秘密保护制度的完善
Comparable Research of Law Regime of Trade Secrets Protection between China and England
中英商业秘密保护法律制度比较研究
Selection of Electric Current Intensity for Cathodic Protection of Buried Steel Pipelines
埋地钢质管道阴极保护电流密度选择
Properties of MDPE speciality resin for fiber jacket
中密度聚乙烯光缆护套专用料的性能
Density-based privacy preserving distributed clustering algorithm
一种分布式隐私保护的密度聚类算法
A Research of the Business Secret Protection System in the Competition Law of Our Country
我国竞争法上商业秘密保护制度研究