| |||
heaver; catch of hook | |||
hook switch; switch hook | |||
| |||
cradle | |||
| |||
gravity switch | |||
| |||
cradle | |||
| |||
hookswitch |
叉簧: 47 phrases in 10 subjects |
Automobiles | 9 |
Aviation | 2 |
Computers | 1 |
Construction | 1 |
General | 1 |
Rail transport | 1 |
Shipbuilding | 1 |
Space | 2 |
Technology | 16 |
Telecommunications | 13 |