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| sight gauge (一种简单的观测液面高低的器具) | |||
| sight gauge | |||
| sight gage | |||
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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 |
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