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| 正交水平面 | |||
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| 横向液面 | |||
| 横向巷道; 横向水准仪; 横向水准器; 横向校正; 直交水准器; 十字形水准器; 轨顶高差; 轨道水平 | |||
| cross-level: 23 phrases in 7 subjects |
| Air defense | 2 |
| Multimedia | 1 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Rail transport | 3 |
| Technology | 13 |
| Wind Energy | 1 |
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