管道阻力损失 meaning in Chinese

duct loss

Meanwhile , it puts forward the exact demand to the indicators of coal for gasification . it systematically studies the thickness of economical heat preservation and calculation process of resistance loss of delivery pipe for analyzing and appraising the techno - economic of hot coal gas ' s delivery pipes . it sets the mathematic model for the calculation of economical heat preservation thickness and resistance losses of conveying pipes , compiles the computer program , dutti and dutt2 and draws the block diagram of relevant computer program
为便于热煤气输送管道的技术经济分析与评价，对输送管道经济保温厚度和输送管道阻力损失的计算过程，进行了系统的研究，建立了输送管道经济保温厚度和阻力损失计算的数学模型，绘制出相应的计算机程序框图，编制了计算机程序dutt _ 1和dutt _ 2 ；并对热煤气的混合燃烧过程进行了研究。