Mathematical model of lump coal production for continuous miner and analyses of influencing factors;
连续采煤机块煤产量数学模型及其影响因素
Effect of kinematics parameters of shearer on lump coal production
采煤机运动参数对块煤产量的影响
Making use of genetic algorithms superiority in optimizing in nonlinearity problem in Matlab software,the continuous miner different lump coal production is optimized,and continuous miner design parameters of a different lump coal production are obtained at the optimal values.
以连续采煤机设计参数为研究对象,建立了不同块煤产量与参数之间的目标函数、设计变量和约束条件。
Survy sampling and forecasting model on coal output of town and village coal mines in China;
全国乡镇煤矿原煤产量抽样调查与预测模型
A comparative study of coal output statisticals of China and abroad
国内外煤炭产量统计对比
Increase of the lump coal yield by innovative technology and management;
依靠技术与管理创新 提高块煤产率
Analszing the Influence on the Mass Rate of Coal From the Parameters of Screw Dram of Shearer
采煤机滚筒参数对采煤出块率的影响
Experienced Probe into the Application of Home-made Big Power Mining Machine in Zhangji Colliery
国产大功率采煤机在张集煤矿的应用
The practice of increasing yield of clean coal of ultra-difficulty washed coal in Panbei Coal Preparation Plant
盘北选煤厂应对极难选煤提高精煤产率的实践
Specification for acoustical design and application of steamcuring flyash concrete masonry
蒸养粉煤灰混凝土砌块生产应用规程
EXPERIMENTAL STUDY ON IMPACT OF WATER RATIO TO ADSORPTION OF LUMP COAL
块煤含水率对其吸附性影响的试验研究
Determination of yield of humic acids in coal
GB/T11957-1989煤中腐植酸产率测定方法
Determination of yield of benzene-soluble extract in brown coal
GB/T1575-1987褐煤的苯萃取物产率测定方法
Discussion on increasing flotation productivity of Ljiatuo Coal Preparation Plant
吕家坨矿选煤厂提高浮选产率的探讨
7On Industrial Productive Technique of Fly Ash Small Hollow Block;
粉煤灰小型空心砌块的工业化生产技术研究
Production process of sandwich laminated thermal insulation sintered block with full coal gangue
夹芯式注孔保温全煤矸石烧结砌块的生产工艺
In order to attain the certain lump coal rate, the key is reasonable picks-lacing.
因而要达到一定的块煤率,关键是截齿的合理排列。
The Efficiency of Input-output of Coal Mining Cities from Its Coal Mining Employee--Based on DEA Empirical Analysis;
我国煤矿人员对煤矿城市投入产出效率的影响——基于DEA的实证研究
An Empirical Study on Total Factor Productivity Change of Coal Cities in China;
中国煤炭城市全要素生产率变动的实证研究
Discussion on the Influence of the Resources Product Import and Export Tax Rate Adjustment on the Coal Profession;
资源性产品进出口税率调整对煤炭行业的影响
Study on Coal-electricity Vertical Regulation Model Based on Industry Chain Efficiency;
基于产业链效率的煤电纵向规制模式研究
Reforming present plan ash of smelting cleaned coal with the rule of the highest production rate;
按最高产率原则改革现行的冶炼精煤计划灰分
Study on the Contribution Rate of Technological Progress to the Economic Growth of Coal Industry
技术进步对煤炭产业经济增长的贡献率研究