管道阻力特性研究是管道水力输送固体物料最基本的问题。
The flow resistance is the basic problem in pipeline hydraulic transport of solid particles.
对于调节阀，由于管道阻力等因素的存在，阀门总是存在流量特性畸变。
Thanks to there always exist the factors such as the pipeline resistance and so on, the flux characteristic of valve will become aberrance.
作为管道输送工程设计的核心内容之一，管道阻力特性的研究具有重要意义。
As one of the key points in the design of a pipeline transport, study on the flow resistance of pipeline sand transport is of great significance.
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