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defense against gas | |||
anti-gas; gas-proof (的) | |||
gas defense |
防 毒气 : 25 phrases in 10 subjects |
Architecture | 2 |
Drilling | 1 |
Exhibitions | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 4 |
Oil processing plants | 1 |
Packaging | 2 |
Space | 4 |
Technology | 5 |
Textile industry | 4 |