Helicopter symbol with mechanical detailed silhouette of rotorcraft, composed of drive shaft and rotor head with blades, cabin and landing windows, tail rotor, skid, transmission systems, reduction gears, bearings, position lights, absorbers, fasteners an

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吸收体, aerotechnics, 风范, 飞机, 飞行, 背景, 风情, 葉片, 顶架, 砍刀, copter, 设计, 详细资料, 详细, 魄力, 緊急事故, 马达, 工程學, 飞行, 鱼饵, 铅径, 齿轮, 图像, 直昇機, 聖像, 插画, 隔绝, 降落, 黑手, 机械性, 軍隊, 近代的, 零件, 驾驶员, 还原, 营救, 转轮, rotorcraft, 轴, 轮廓线, skid, 尾巴, 科技, 透射, 運輸, 運輸, 旅行, 矢量, 通信工具, 风窗