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retrostage | |||
braking step | |||
braking stage |
制动 级: 19 phrases in 11 subjects |
Air defense | 1 |
Architecture | 1 |
Automobiles | 4 |
Electric machinery | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Metallurgy | 1 |
Refrigeration | 1 |
Technology | 6 |
Telecommunications | 1 |
Wind Energy | 1 |