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retrostage | |||
velocity reducing steps | |||
retarding stage |
减 速 级 : 83 phrases in 12 subjects |
Automobiles | 27 |
Aviation | 1 |
Chemistry | 1 |
Communications | 1 |
Electronics | 2 |
Metallurgy | 5 |
Nautical | 8 |
Oil / petroleum | 2 |
Rail transport | 1 |
Shipbuilding | 4 |
Technology | 29 |
Wind Energy | 2 |