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废气预 热器 | |
gen. | economizer |
废气预热器 | |
oil.proc. | economizer |
功能试验 | |
gen. | breadboard; go-no-go-test |
met. | functional test |
space | function test |
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economizer | |||
exhaust gas economizer; heat economizer | |||
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economizer |
废气预热器 : 8 phrases in 4 subjects |
Metallurgy | 1 |
Nautical | 1 |
Shipbuilding | 5 |
Technology | 1 |