词汇	phononic band gap
释义	phononic band gap 声子禁带
随便看	Air Request Support air requirement air requlation control air requlator air rescue air rescue and recovery squadron air rescue boat Air Rescue Boat Air Rescue Center Air Rescue Control Center Air Rescue Flying Center Air Rescue Group air rescue kit air rescue operation Air Rescue Operations Center Air Rescue Service Manual Air Rescue Service Regulation Air Rescue Ship Air Rescue Squadron Air Rescue Unit Air Research and Development Center Air Research and Development Command air research and development commandardc Air Research and Development Council Air Research Bureau