The result of observing demonstrated that crude joint and crack of lower top coal were much more developed than integrated upper top coal in front .
19 m)的原生节理裂隙比较发育,上位顶煤(2。
The disturbance to strata during tunnel construction brings about strata deformation and opens original vertical joints,so it is ubiquitous for the earth s surface cracks during shallow loess tunnels construction.
隧道施工中对地层的扰动,引起地层变形和使原生垂直节理张开,致使浅埋黄土隧道普遍存在地表施工裂缝。
Taking the double horse head type,offset-wheel type,swingrod type and downward beam balance weight type as the searching objective,firstly structure designing and energy-saving principle of the four types of beam-pumping unit are analyzed,then their performance are contrastively analyzed at the same condition,referring as offset pumping unit with comparative analyzing.
以双驴头、偏轮式、摆杆式和下偏杠铃式游梁节能抽油机为研究对象,给出了4种抽油机设计结构及节能原理;然后在同一工况下,以偏置式抽油机为参照,对比分析了4种节能抽油机的节能效果。
The actual states of China\'s energy-saving doors and windows,the energy-saving principles and technologies of the outside doors and windows were discussed,as well as the design measures to ensure energy-saving effect of the outside doors and windows in the building.
探讨了我国节能门窗发展的现状、外门窗的节能原理、建筑外门窗的节能技术,以及为保证节能效果外门窗在建筑中的设计手法等。
The principle of the equipment of transducer is introduced, as well as the notice of the energe-saving of the injection machine.
介绍了变频调速节能装置的节能原理，注塑机节能改造的注意事项。
Analysis of Quasi Combined Eddy and Energy Saving Study in Hydroceyclone
水力旋流器类组合涡分析及节能原理研究
The Theory Study on Central Heating Economizing of Civil Buildings in Cities of China;
城市民用建筑集中供热采暖节能原理研究
Analysis on energy-saving theory of the medium-frequency induction power supply
串联谐振式中频感应电炉节能原理分析
The energy saving principles and necessity of application of frequency converter to direct spinning polyester filament air-conditioned equipments were introduced.
介绍直纺长丝空调设备上应用变频器的节能原理和必要性。
Study on Energy-saving of EPB System in Shield Machine Based on Secondary Regulation Principle;
基于二次调节原理的盾构EPB系统节能特性研究
THEORETICAL ANALYSIS OF ENERGY-SAVING TUBE SCREEN TECHNOLOGY FOR ROLLER KILN
辊道窑节能管屏技术的原理分析研究
Studies on the Energy Conservation Ideas and Assessment System of Ecological Residential in Inner Mongolian Prairie;
内蒙古草原生态住宅节能理念与评价体系研究
Analysis of energy saving and thermal comfort in heating mode based on entropy principle
基于熵增原理的供暖方式舒适性节能性分析
Using Whole Life Cycle Principle to Evaluate Energy Efficiency of Exterior Wall Insulation Scheme from Economic Aspect;
从经济角度运用全生命周期原理评价外墙外保温节能体系的能效
Principle of Automatic Control & Regulation
自动控制与调节原理
Unique operation modes, fundamentals and principles of management in details;
细节管理独特的运行方式、原理和原则
The Use of Trombe Wall System in Energy Saving Renovation of Buildings with Fair Brick Masonry;
特朗勃墙原理用于清水砖墙建筑外墙节能改造的研究
Function and Signaling Mechanisms of Poly-galacturonase Inhibiting Protein in Plant Response to Disease Resistance;
病原菌胁迫下多聚半乳糖醛酸酶基因功能以及信号调节机理研究
The Simplified Principle of the Strip Tension-leveling and how to Economize the Energy
带钢拉弯矫直技术原理简述与节能降耗的控制措施
Dynamic Characteristics of Temperature and Humidity Parameters and Heat Saving Principle in the Dryer Section of a Large-scale Paper Machine
大型纸机干燥部温湿参数动态特征及热能节约原理的研究
Principle of Automatic Control & Hydrogenerator Regulate
自动调节原理及水轮机调节
Strengthened energy saving management reconstruction, improvement energy saving and lower consumption;
加强节能管理与改造 促进节能降耗