亚音速喷气式飞机: su onic jet aircraftsubsonic jet aircraft
Example Sentences:
1.
It requires all subsonic aircrafts using the hong kong international airport to be certified as meeting the most stringent standards 按该条例规定,所有亚音速飞机必须持有证明书,确定飞机符合最严谨的噪音标准,方可在香港国际机场升降。