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实验室〔坐标〕系统 | |||
实验室系统 | |||
实验室坐标系统 | |||
实验室系; 语音教室每位一台录音机; 电化教屋 | |||
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实验室坐标系 |
laboratory system: 85 phrases in 13 subjects |
Air defense | 2 |
Aviation | 25 |
Earth sciences | 11 |
Electronics | 22 |
General | 2 |
Geology | 2 |
Information technology | 1 |
Nautical | 3 |
Navigation | 1 |
Space | 9 |
Technology | 4 |
Textile industry | 1 |
United States | 2 |