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test prototype | |||
pilot machine | |||
boilerplate; breadboard model | |||
development type; experimental prototype | |||
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experimental prototype |
试验 样机 : 17 phrases in 7 subjects |
Automobiles | 2 |
Aviation | 3 |
Electronics | 1 |
Metallurgy | 1 |
Space | 4 |
Technology | 5 |
Textile industry | 1 |