单词	取代基
释义	取代基 QǔDàiJīsubstituent chemistry
随便看	air tracker Air Trackerlong Range air tractor airtraffic air traffic air-traffic air traffic accident air traffic advisory service air traffic and volmet service Air traffic area air-traffic area air traffic clearance air traffic clearance limit Air Traffic Communication air traffic communications service Air Traffic Communications Station Air Traffic Communications System air traffic communication station air traffic compiler air traffic conference air traffic conference of america air traffic conflict air traffic congestion Air traffic continues to grow steadily air traffic control