In this thesis, the back fill scheme of persion bottom tunnel and power penstock chute with low-heat and micro-expanding concrete is made based upon the layout of construction site and the provided equipment condition of Wanjiazhai Project by comparing the various kinds of concrete with the backfill scheme of persion bottom tunnel and power penstock.
本文是根据万家寨水利枢纽工程施工布置及已具备的混凝土施工设备，经过对不同品种混凝土结合回填导流底孔及钢管槽的方案比较，确定用低热微膨胀水泥混凝土回填施工方案。
Evaluation of potential for exploiting arable land in low hilly red soil region in Lanxi based on remote sensing and GIS;
基于遥感与GIS的低丘红壤区耕地开发潜力评价
low pressure gas infrared heater
低压煤气红外加热器
direct-heating gas burner
直接加热煤气灯,直接加热煤气燃烧器
Study on Character of Combustor with Low-pressure Hot Dirty Gas and Engineering Application;
低压热脏煤气燃烧器的特性研究及工程应用
infrared directional radiation heater
红外定向辐射加热器
Heating performance of a jetting-mixing low-pressure heater
引射混合式低压加热器加热性能试验
Hazard to High-pressure Feed Water Heater by Low-pressure Feed Water Heater Outaging and Preventive Action in 660MW Unit
660MW机组低压加热器停运后高压加热器预防措施
Economic Analysis of Installing Low Pressure Economizer in Thermal Power Plant;
火电厂加装低压省煤器经济效益分析
automatic gas fired water heater
自动煤气燃烧的水加热器
Studies on the Catalysts for Catalytic Combustion of Propane and the Infra-red Heater for the Casting Head Gas;
丙烷催化燃烧催化剂的研究和油井套管气红外加热器的研制
LPHP hot water heat exchanger
低压-高压热水换热器
Experimental research on heating performance of jetting-mixing low pressure heaters
引射混合式低压加热器加热特性的实验
Selection of far infrared heating elements in low temperature resistance furnace
低温辐射电热炉的远红外加热元件的选择
Copper Tube Leakage and Countermeasures for Generating Set Low Pressure Heater
机组低压加热器铜管失效泄漏与对策
The research about DJ400 low pressure heater nozzle leaking problem;
DJ400低压加热器管口漏水问题的研究
Research on Computer-Aided Design System of Low- Pressure Heater
低压加热器计算机辅助设计系统研究
DETERMINATION OF CONTENT OF SULPHUR IN COAL WITH SILICON-CARBON TUBE HEATING PLUS INFRA-RED ABSORPTION
硅碳管加热-红外吸收法测定煤中的硫含量
Numerical Simulation and Experimental Study on Low Calorific Value Coal Mine Methane Burner;
低热值煤层气燃烧器的数值模拟与实验研究
Numerical Study on Space Outer-heat Simulator Manner with Infrared Thermal Club
红外加热棒式空间外热流模拟器的数值研究