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rail creep
| observation post
| rail creep | |
| tech. | 钢轨爬行; 轨道蠕动 |
| observation post | |
| gen. | 观测所; 了望哨; 监视 哨 |
| bridg.constr. | 观测站 |
| mount. | 观察站 |
| railw. | 观测桩 |
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| 钢轨爬行; 轨道蠕动 | |||
| rail creep: 7 phrases in 2 subjects |
| Rail transport | 3 |
| Technology | 4 |
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