动态经济比较法
dynamic economy comparison method
钢筋和混凝土的经济比率
economic percentage of steel and concrete
国民经济比例关系
propotional relationship of national economy
技术经济比较
Techno-economic Comparison
Technical and Economical Comparison
Comparison of Technology and Economy
non - cutting rehabilitation of pipeline
Technical and Economic Comparison
Economic and Technical Comparison
technical economical comparison
comparison of technical economy
techno - economic comparison
technologic and economic comparison
comparing technicality and economics
contrast in technology sod economy
Technical and Economical Comparisons
technical economic comparison
technical and economic comparision
technic-economical com-parison
contrast in technology and economy
经济比较
laxiwa hydroelectric power station
Economy comparison
economic evaluation
Economic comparision
economic comparison
Economic Comparison and Contrast
economical comparison
commercial comparison
Economic comparing
经济比摩阻
optimal specific frictional head loss
economical resistance loss
物流经济联系
logistics economic linkages
变回流比调节
variable reflux ratio regulation