O-ring
/ˈəʊˌrɪŋ/noun
- a gasket or seal in the form of a ring with a circular cross section, typically made of rubber and used especially in swivelling jointsO型环, 密封圈。
| 单词 | O-ring |
| 释义 | O-ring/ˈəʊˌrɪŋ/noun
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