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| 平面的; 地面的; 在同一水平面上的 | |||
| 在同一水平面上 | |||
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| 在地表面 | |||
| 在同一平面上 | |||
| 铁路等交叉在同一水平面上 | |||
| at-grade: 33 phrases in 13 subjects |
| Architecture | 1 |
| Automobiles | 3 |
| Bridge construction | 2 |
| Communications | 1 |
| Construction | 1 |
| Economy | 1 |
| Finances | 2 |
| General | 2 |
| Management | 1 |
| Oil and gas technology | 1 |
| Rail transport | 6 |
| Technology | 10 |
| Transport | 2 |
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