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质心系
| 统
| 质心系 | |
| chem. | centre-of-mass system |
| el. | center of mass system |
| 统 | |
| gen. | oneness |
| earth.sc. | system |
| geol. | series |
| oil | series |
| |||
| centre-of-mass system | |||
| center of mass system | |||
| center of mass frame | |||
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质心系统 : 16 phrases in 11 subjects |
| Aviation | 2 |
| Bridge construction | 1 |
| British usage, not spelling | 1 |
| Electronics | 2 |
| General | 1 |
| Geology | 1 |
| Metallurgy | 2 |
| Navigation | 1 |
| Physics | 1 |
| Space | 1 |
| Technology | 3 |
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