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external seal | |||
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outer gland sealing |
外 密 封 : 52 phrases in 13 subjects |
Architecture | 1 |
Astronautics | 1 |
Automobiles | 12 |
Aviation | 1 |
Electric machinery | 2 |
Electronics | 10 |
General | 2 |
Lighting other than cinema | 1 |
Nautical | 1 |
Oil / petroleum | 1 |
Plastics | 2 |
Rail transport | 1 |
Technology | 17 |