reverse rotation

Based on the well structure size and the drilling parameters, the characteristic of drill pipe reverse rotation, the calculating formula of the reverse rotation speed and its bending frequency was analyzed in detail.

根据塔里木油田井身结构尺寸、钻井参数，详细地分析了塔里木油田钻杆反转转速、弯曲频率和其环隙比与反转运动的关系。

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At the same time, establish the pressure balance model of every stage during the failure shut-down reverse rotation process.

与此同时，建立了故障停机反转过程中压缩机各段压力平衡模型。

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Numerical Study on Reverse Rotation Phenomenon in Tangentially Fired Furnace Model

切向燃烧锅炉模型中反旋现象的数值模拟

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If electricity in reverse order, the motor shaft by the anti-clockwise rotation.

若通电顺序相反, 则电机轴按逆时针方向旋转.

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Experimental Study on Reverse Rotation in a Tangentially Firing Boiler

切向燃烧锅炉气流反旋现象试验研究

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Analysis of drill pipe reverse rotation and it's bending frequency

钻杆反转运动及其弯曲频率分析

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Gravitational force, magnetic force as well as solar radiation are all in reverse direction with the rotation of the spiral arms, and the combination result of this double spiral reverse twisting made pits concentrated into major planets moving in their own orbits.

太阳产生了引力、磁力，又有太阳辐射，它们与旋臂扭动相反，二者呈双螺旋反向扭动复合，使星子集中并按轨道形成了各大行星。

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The machine has forward and reverse rotation speed Promise.

本机拥有正向、反向无极调速旋转。

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Under the certain drill pipe rotation speed, the reverse rotation speed of the drill pipe is related to the annulus gap ratio.

在钻杆自转转速一定时，钻杆的反转转速与环隙比值β有关。

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A power amplification of H-bridge bipolar PWM control is designed for controlling DC micro-motor of positive rotation, reverse rotation and speed regulation.

基于H型双极模式PWM控制原理，设计了一种直流微电机正反转调速功率放大电路。

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The reverse rotation will result in destruction of the dry gas seal and other components.

压缩机反转将对干气密封及其他零部件造成破坏，严重影响了乙烯装置的平稳、高效运行。

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