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| 圆 形环: 37 phrases in 14 subjects |
| Automobiles | 4 |
| Dermatology | 2 |
| Electronics | 1 |
| Figure skating | 1 |
| General | 4 |
| Latin | 1 |
| Management | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 16 |
| Telecommunications | 1 |
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