?双旋翼直升机
... 单旋翼直升机 single-rotor helicopter 双旋翼直升机 dual-rotor helicopter; twin-rotor helicopter 刚接式旋翼直升机 helicopter; rigid-rotor; rigid-rotor helicopter ...
双旋翼式直升飞机
From the British base, a twin-rotor helicopter ferries U.S. Marines and equipment to Camp Dwyer, another British base that now is also home to the U.S. Marines 24th Expeditionary Unit.
NPR: Trip Illuminates Life on Bases Across Afghan Desert
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。