这个温度降低是由于随机气体微粒运动(温度和压力)的柏努利转换成定向运动(流)而造成的。
The temperature reduction results from the Bernoulli conversion of random gas-particle motion (temperature and pressure) into directed motion (flow).
优先定向以具有较高压力的轴面作为流体压力，用于帮助阀板密封。
The preferred direction would be shaft side high pressure as the pressure in the flow would assist the disc in sealing.
对定向井井筒压力分布，计算时根据井斜角的变化采取分段计算的方法。
According to the changes of deviation Angle calculated the pressure distribution of directional well.
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