In this paper the spiral velocity of eccentric annulus with inner pipe turned is analysed and computed.
本文分析计算了石油钻井工程偏心环空中内管转动的螺旋流动。
Computation of eccentric annular flowing on Bingham-fluid in pipe is approximate in many literatures and is not of universality.
在调研了大量关于宾汉流体偏心环状管流的文献之后，发现大都是近似计算而不具有普适性。
Pump inlet pipe diameter changes when level, should choose eccentric different-diameter pipe.
泵的水平入口管变径时，应选用偏心异径管。
PC-35 style Pump Connectors also come in eccentric and concentric taper types. Connectors must be protected from axial piping movement by using pipe anchors or control units as required.
有偏心和同心式不同设计，连接器必须防止轴向管道移动，如需要可用管锚或控制元件。
Eccentric different-diameter pipe tube ends in circumference, commonly used for liquid level of pipeline.
偏心异径管两端管口圆周内切，一般用于水平的液体管道。
Eccentric different-diameter pipe tube ends in circumference, commonly used for liquid level of pipeline.
偏心异径管两端管口圆周内切，一般用于水平的液体管道。
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