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主发动机 zhǔfādòngjī
avia. mainstage; major engine; sustainer motor
compr. prime engine
mech. sustainer engine
mil., air.def. main transmitter; master transmitter
space main engine; main motor; sustainer; main stage (火箭的)
tech. cruising engine
发动机
gen. sustainer
space sustainer engine
主发动机: 74 phrases in 13 subjects
Automobiles3
Aviation15
Construction1
Economy1
Electronics1
General3
Mechanics2
Nautical1
Navigation1
Shipbuilding3
Space30
Technology11
United States2