 |
双层式
| 环形
| 立体
| 枢纽
| 双层式 | |
| tech. | two-layer equation |
| 环形 | |
| avia. | toroidal |
| gymn. | annular; king-like |
| hydroel.st. | ring |
| met. | ring crucible |
| space | doughnut |
| tech. | circline |
| telecom. | doughnut |
| water.res. | looping |
| 立体 | |
| hydroel.st. | stereo |
| 枢纽 | |
| hydroel.st. | pivot |
| |||
| two-layer equation | |||
| 双层式: 44 phrases in 13 subjects |
| Bridge construction | 2 |
| Construction | 1 |
| Electric machinery | 1 |
| Electronics | 2 |
| Engineering geology | 3 |
| General | 2 |
| Gymnastics | 1 |
| Metallurgy | 4 |
| Project management | 1 |
| Rail transport | 2 |
| Space | 1 |
| Technology | 20 |
| Textile industry | 4 |
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