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| circular cross section | |||
| annular section | |||
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| circular cross section | |||
| 圆断 面: 42 phrases in 12 subjects |
| Agriculture | 1 |
| Architecture | 3 |
| Automobiles | 1 |
| Ecology | 1 |
| Electronics | 2 |
| Engineering geology | 2 |
| Hydroelectric power stations | 3 |
| Metallurgy | 10 |
| Plastics | 1 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Technology | 16 |
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