节流装置（制冷系统中也可以叫节流阀）是在充满管道的流体流经管道内的一种流装置，流束将在节流处形成局部收缩，从而使流速增加，静压力降低，起到降温减压的作用。 节流阀装置
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.
一种节流阀控制装置，包括一个带螺线管的定子铁芯和一个带节流阀的转子。
A throttle valve control device is composed of a stator core with a solenoid and a rotor carrying a throttle valve.
某油田一天然气井的产量突然下降，经检查发现该井采气装置中的节流阀柱塞套断裂为三截，形成了两对断口。
The yield of a natural gas well in an oilfield dropped suddenly, which was due to the piston sheath of the choke valve breaking into three parts with two pairs of fractures after inspection.
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