| |||
fluted | |||
grooving | |||
slotted | |||
grooved; notched | |||
| |||
grooved |
开 槽的 : 31 phrases in 10 subjects |
Architecture | 1 |
Automobiles | 15 |
Aviation | 1 |
Economy | 1 |
Electric machinery | 1 |
Electronics | 1 |
International trade | 1 |
Plastics | 2 |
Technology | 7 |
Telecommunications | 1 |