AC motor with slip-ring sliding 滑环式交流电动机

Block-on-ring sliding wear test 试环

sliding ring 滑环

sliding ring girder support 滑动支墩

lay in the sliding ring 躺在滑环

possibly without sliding ring 可能没有滑环

the sliding ring 滑环

sliding-ring hub 滑环毂

sliding ring seal 滑环密封

tooth and sliding ring 齿形滑环