本文利用熵法对涡流管、透平膨胀机及节流阀三种装置进行了研究。
In this paper, a method of entropy has been used to investigate vortex tube, throttle valve and expansion turbine.
附加流速法通过向节流管线内注入轻质的附加流体降低了节流管线的压降，可以很好的解决上述的压井难题。
Additional flow rate (AFR) method can overcome this problem beautifully by inject a kind of light and thin fluid into choke line to drop its pressure loss.
本文介绍采用功率键合图和状态空间法对薄膜反馈节流液体静压轴承的动状特性进行数字模拟的方法；
This paper describes an approach using power bond graph and condition space method to digitally imitate the dynamic characteristics of the hydrostatic bearings with film feedback throttle.
文章把压差测试法作为研究的重点，完成了井下节流装置的设计。
The paper takes the differential pressure test method as the research the key point, has completed the throttling gear design under the well.
文章把压差测试法作为研究的重点，完成了井下节流装置的设计。
The paper takes the differential pressure test method as the research the key point, has completed the throttling gear design under the well.
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