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| 重心 | |||
| gravity centre: 45 phrases in 14 subjects |
| Athletics | 4 |
| Automobiles | 1 |
| Bodybuilding | 1 |
| Bridge construction | 5 |
| Business | 1 |
| Electronics | 1 |
| Finances | 2 |
| General | 5 |
| Mathematics | 1 |
| Metallurgy | 2 |
| Physics | 1 |
| Space | 1 |
| Sports | 4 |
| Technology | 16 |
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