| |||
twin wheels | |||
coupled wheel; engaged wheel | |||
coupled wheels |
联动轮 : 29 phrases in 13 subjects |
Automobiles | 1 |
Aviation | 2 |
Business | 2 |
China | 1 |
Drilling | 1 |
Electronics | 1 |
General | 3 |
Nautical | 2 |
Oil / petroleum | 1 |
Shipbuilding | 6 |
Space | 2 |
Sports | 1 |
Technology | 6 |