| |||
switch port | |||
attachment hole | |||
| |||
connecting bore |
连接孔 : 25 phrases in 11 subjects |
Automobiles | 1 |
Bridge construction | 1 |
Computer numerical control | 1 |
Electric machinery | 1 |
Electronics | 2 |
General | 1 |
Information technology | 1 |
Oil / petroleum | 2 |
Space | 2 |
Technology | 8 |
Telecommunications | 5 |