单词	落地滚行
释义	落地滚行ground roll
随便看	manipulator traversing gear manipulator turning manipulator turning gear manipulator turning--gear manipulator, under-water manipulatory manipulator， ball manipulator， ball (-socket) manipulator， castle-type manipulator， electronically control manipulator， force-reflecting manipulator， general purpose manipulator， heavy duty manipulator， hydraulic manipulator， ionization manipulator， master-slave manipulator，mechanical arm manipulator， overhead manipulator， over-wall manipulator， plug-in manipulator， radiometric manipulator， rectilinear manipulator， remote manipulator， remote-control manipulator， servo