单词	肿哙
释义	同腫噲
随便看	directional split directional spreading function directional stability directional structure directional survey directional transaction directional transducer directional transmission directional transmitter directional unit directional valency directional valve directional valve box directional wave measuring equipment directional wave spectrum directional well directional wireless direction angle direction angle (vectorial angle) direction-annexed traverse direction arm direction c. direction change relay direction character direction coefficient