helium group

helium group 基本解释

[网络] 氦组

网络

重点词汇

• groupn. 团体, 组, 团, 群 v. 聚合, 成群 [计] 创建组; 组, 用户组
• heliumn. 氦 [化] 氦

helium group 双语例句

1. 1、 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。
2. 2、 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。
3. 3、 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。