Nomatter transporting gas or oil, there are pipelines, there are pipe fittings such as bend pipe, reducing joint, T-pipe, pipe cap and so on.
无论是用管道输气、输油，凡有管道的地方，都少不了弯头、异径接头、三通、管帽等管件。
According to the experimental and theoretical analysis, equations have been presented to predict the pressure drop of a high density gas-solids mixture flow through a horizontal pipe and bend section.
根据实验结果和理论分析，本文提出了高浓度气固混合物在L阀中流动时的压力损失的计算公式。
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