The design method of irrigation pipe flow meter is presented and high precise sensor is chosen.

给出智能灌溉管道流量计的设计方法，以及高精度传感器的选择。

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The single well flow metering unit, which is made up of oil meter, recorder, accessories such as pipe and valve and so on, was developed for the oil measurement of single well in series oil Wells.

单井流量计量装置是为解决串联油井的单井量油而研究的，该装置由量油器、记录仪表及管阀附件等组成。

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The gas-solid flow in pipe and venturi meter is discussed in this paper on the basis of fundamentals of two-phase flow.

本文从两相流的基本原理出发，分析等截面、变截面和文丘利流量计内的气—固两相流动。

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Inside the riser pipe is a space about half a meter in diameter, large enough to hold the spinning drill pipe and bit and to allow the return flow of drilling fluid.

FORBES: The delicate art of sucking up