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| |||
| 复合截面; 组合截面 | |||
| 综合剖面 | |||
| 复合断面 | |||
| 复合剖面 | |||
| 复式截面 | |||
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compound section : 8 phrases in 6 subjects |
| Bridge construction | 1 |
| Desert science | 1 |
| Drilling | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Technology | 3 |
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