单词	drafting roll
释义	drafting roll 牵伸罗拉
随便看	helicopter operational trainer Helicopter Operations Helicopter Operations Net Helicopter Operations School Helicopter Optical Tracking and Control Helicopter Outlying Field helicopter over the palace Helicopter Oxygen System helicopter pad helicopter parent helicopter parents helicopter pat helicopter patrol helicopter patrols Helicopter Performance Computer helicopter pilot Helicopter Pilot Control and Training Helicopter Plane Commander helicopter platform Helicopter Position and Terrain Helicopter Position and Terrain Height helicopter powerline inspection helicopter power line inspection helicopter power loading helicopter power transmission system