1) Back Side Helium
背面氦气
2) helium
[英]['hi:liəm] [美]['hilɪəm]
氦气
1.
The preliminary study of small centrifugal compressor compressing helium in a closed cycle;
小型离心式压气机压缩氦气闭式循环的初步研究
2.
Design and study of a reciprocating helium compressor;
大功率活塞式氦气压缩机的研制
3.
Solid Lubrication Technology of HTG R under Helium;
高温气冷堆氦气气氛下的固体润滑技术
4) Back shielding with Ar
背面通氩气保护
5) heating lining back face with exhaust gas
废气背面加热
6) helium - oxygen mask
氦氧面罩
补充资料：氦气
He 见稀有气体。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条