她的经历让我着迷：她曾体验过牵引式飞行，由一架超轻型飞机牵引着飞行到2000英尺的高空。
She'd been flying towed tandem flights, pulled up to 2, 000 feet behind an ultralight.
介绍一种将侧翻式矸石卸载架由人工和绞车牵引移架改为液压自动移架的方法。
The article introduces a method to change the side-dump waste rock unloading scaffold from manual and winch power advance to hydraulic automatic advance.
介绍一种将侧翻式矸石卸载架由人工和绞车牵引移架改为液压自动移架的方法。
The article introduces a method to change the side-dump waste rock unloading scaffold from manual and winch power advance to hydraulic automatic advance.
应用推荐