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道床结构
| 钢筋连接
| 端子
| 道床结构 | |
| railw. | structure of ballast |
| 钢筋连接 | |
| hydroel.st. | splice reinforcement |
| AV 端子 | |
| nautic. tech. | composite video port |
| 端子 | |
| avia. | connector |
| el. | terminal |
| met. | clamp; terminating |
| nautic. tech. | digital visual interface DVI |
| tech. | connecter; post |
| |||
| structure of ballast | |||
| 道床结构: 3 phrases in 1 subject |
| Technology | 3 |
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