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leakage test for preservation package | |||
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leak test | |||
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leak test |
漏 泄 试验 : 29 phrases in 13 subjects |
Automobiles | 1 |
Aviation | 2 |
Business | 1 |
Chemistry | 2 |
Ecology | 1 |
Electric machinery | 1 |
Electronics | 6 |
Hydroelectric power stations | 3 |
Metallurgy | 1 |
Nautical | 1 |
Oil / petroleum | 4 |
Space | 2 |
Technology | 4 |