He had a smoke before setting to work.
他开始工作前抽了一支烟。
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.
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.
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。
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