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| 密封的; 真空密封的 | |||
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| 真空密封接头; 气密封接头 | |||
| 气密封件 | |||
| 密封 | |||
| 真空密封 | |||
| 气密封 | |||
| 气封 | |||
| 密封止水 | |||
| 气密封接; 密封接头 | |||
| 真空密封; 密封 (接头); 气密封 (闭) | |||
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hermetic-seal : 1 phrase in 1 subject |
| Technology | 1 |
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