1) Helium atmosphere
氦气保护
2) helium arc welding
氦气保护焊
3) helium shielded welding
氦气保护焊接
4) helium shielded-arc welding
氦气保护弧焊
5) helium gas service engineering
氦气保障工程
1.
In this paper the design of surplus payload of aerostat is presented, based on calculation analysis of helium gas service engineering.
本文通过氦气保障工程的分析计算 ,提出了浮空器有效载荷的设计余量。
6) 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
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