Seal Airtight
- 网络密封；严密地封闭
Seal AirtightSeal Airtight
密封
Character -... ... 封山[ seal(or close)a mountain pass] 密封[ seal off (up);seal airtight;close] 同本义[ boundary] ...
严密地封闭
airtight... ... 2. airtight shaft seal: 气密轴封 3. seal airtight: 严密地封闭 1. airtight seal: 气密 | 空气密封 | 密封包 ...