A leg with a roller blade wheel telescopes down and I can lock it in place with the pull cable handle.
一条腿的辊叶轮望远镜下来，我可以锁定在与拉电缆处理。
The facilities for the operator vary from push-buttons and/or touch-screens to pull-down menus activated by roller balls and 'enable' buttons.
操作人员的应用 可以通过从按钮 ，触摸屏 ，下拉菜单 及滚动球或使能”Enable”按钮等等 来实现。
The facilities for the operator vary from push-buttons and/or touch-screens to pull-down menus activated by roller balls and 'enable' buttons.
操作人员的应用 可以通过从按钮 ，触摸屏 ，下拉菜单 及滚动球或使能”Enable”按钮等等 来实现。
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