helium group
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[网络] 氦组
双语例句
- Open the reducing valve of helium steel cylinder and the monoblock pump of the molecular pump group.
开启氦气钢瓶的减压阀和分子泵组的直联泵。 - Any of the chemically inert gaseous elements of the helium group ( group 8A or 0 of the periodic table).
元素周期表中氦族（A族或族）中任何在化学上具有惰性的气体元素。 - Mothods: 80 patients ( observed group) treated by irradiating acupoints with helium neon laser were compared with another 80 patients ( control group) by ultrashort wave.
方法：采用氦氖激光照射观察组80例与使用超短波治疗对照组80例进行观察。