| |||
centre-of-mass system | |||
center of mass system | |||
center of mass frame |
质心系 : 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 |