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。
2
Close the reducing valve of helium steel cylinder and the monoblock pump of the molecular pump group.
关闭氦气钢瓶的减压阀和分子泵组的直联泵。
3
Noble gas (or inert gas) : Any of the six chemical elements that make up the rightmost group of the periodic table as usually arranged: helium, neon, argon, krypton, xenon, and radon.