文章介绍了载人航天空间环境模拟器气氦制冷系统中氦气透平膨胀机的设计、制造、调试等过程，并说明了它具备的特点。

The paper introduces the helium turbine which used in helium refrigerator of space environment simulator, including its design, setting-to-work test and its characteristics.

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在微重力条件下，研究了空间站载人舱通风系统中进出风口大小对空间站实验舱流场的影响。

In microgravity condition, the influence of the size of inlets and outlets on the flow field in the experimental space station cabin was studied.

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