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| |||
| 等高法水准测量 | |||
| 等值水平; 修补 | |||
| 等高线水准测量; 等高层 | |||
| contour level: 7 phrases in 4 subjects |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Otorhinolaryngology | 1 |
| Technology | 3 |
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