unpowered control无助力操纵
unpowered decanter无动力滗水器
unpowered missile无动力弹体
Unpowered Rune钻石与符文
unpowered phase无动力飞行阶段
unpowered vehicle无动力飞行器
unpowered rudder无助力操纵方向舵
unpowered vessel无动力船
unpowered flight[航] 无动力飞行
"an autogiro is supported in flight by unpowered rotating wings"