| |||
snap ring | |||
resilient ring | |||
bungee ring | |||
elastic ring | |||
| |||
elastic ring |
弹性环 : 31 phrases in 12 subjects |
Angling hobby | 1 |
Automobiles | 4 |
Aviation | 2 |
Dermatology | 1 |
Drilling | 2 |
Electric machinery | 2 |
Information technology | 2 |
Oil / petroleum | 1 |
Plastics | 2 |
Polymers | 2 |
Space | 2 |
Technology | 10 |