| |||
ultra high vacuum | |||
extreme vacuum | |||
ultra-high vacuum | |||
ultra-high-vacuum | |||
ultrahigh vacuum |
超 高真空 : 40 phrases in 9 subjects |
Aviation | 2 |
Chemistry | 1 |
Electronics | 15 |
General | 1 |
Geophysics | 1 |
Metallurgy | 1 |
Oil processing plants | 2 |
Space | 2 |
Technology | 15 |