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breadboard; pilot | |||
prototype | |||
brassboard | |||
experimental | |||
brass board | |||
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=brassboard | |||
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experimental |
实验 性的 : 23 phrases in 9 subjects |
Earth sciences | 2 |
Economy | 1 |
Explosives and Explosive Ordnance Disposal | 2 |
Footwear | 1 |
General | 6 |
Project management | 1 |
Space | 1 |
Technology | 8 |
United Nations | 1 |