 |
| |||
| 隧道 (地下通道，特别是为火车或汽车穿过山，河流或拥挤的市区而设的。) | |||
| 地洞 | |||
| 明渠 | |||
| |||
| 两头封; 上下限 | |||
| tunnel: 11 phrases in 9 subjects |
| Computer networks | 1 |
| Hydrology | 1 |
| Medical | 1 |
| Semiconductors | 2 |
| Superconductivity | 1 |
| Technology | 2 |
| Thermal Energy | 1 |
| Transport | 1 |
| Wood processing | 1 |
|
| |||
| 隧道 (地下通道，特别是为火车或汽车穿过山，河流或拥挤的市区而设的。) | |||
| 地洞 | |||
| 明渠 | |||
| |||
| 两头封; 上下限 | |||
| tunnel: 11 phrases in 9 subjects |
| Computer networks | 1 |
| Hydrology | 1 |
| Medical | 1 |
| Semiconductors | 2 |
| Superconductivity | 1 |
| Technology | 2 |
| Thermal Energy | 1 |
| Transport | 1 |
| Wood processing | 1 |