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chemical sampling | |
oil | 化学取样 |
system | |
gen. | 体 |
IMF. | 安排 |
interntl.trade. | 系统分析 |
met. | 系; 装置 |
tech. | 制度; 体系; 系统; 方法 |
| |||
化学取样 |
chemical sampling system : 4 phrases in 4 subjects |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Nautical | 1 |
Technology | 1 |