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天然气管道减阻
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天然气管道减阻
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天然气管道减阻
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friction reducing for gas transmission pipeline
天然气管道减阻
通过增加管道直径、提高管道设计和运行压力、管道内壁涂覆减阻内涂层、设置天然气冷却器等措施减小天然气在管道内流动阻力(管道摩阻)的方法。
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upper semicontinuous function
upper semi continuous mapping
upper semi-continuous mapping
upper semicontinuous mapping
upper semicontinuous partition
upper semi-lattice
upper semi-modular lattice
upper semisphere
upper series
upper set
upper side frequency
Upper Silesia Coalfield
upper singular exponent
upper solution
upper solution; supersolution
upper-stage
upper stage liquid rocket engine
upper strong derivative
upper subsemilattice
upper sum
upper surface
upper tangent arc
upper topological limit
upper transit
upper triangular group
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