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sight gauge (一种简单的观测液面高低的器具) | |||
sight gauge | |||
sight gage |
观测 计 : 66 phrases in 14 subjects |
Aviation | 2 |
Business | 2 |
Compressors | 1 |
Desert science | 1 |
Earth sciences | 25 |
Electronics | 1 |
General | 3 |
Geophysics | 1 |
Metallurgy | 1 |
Navigation | 2 |
Oil / petroleum | 1 |
Space | 4 |
Technology | 18 |
United States | 4 |