When in work, the outer labyrinth cycle rotates together with a gyratory part, and the inner labyrinth cycle is fixed with a shell and stays in a static state.
工作时，外迷宫圈跟随回转部分一起旋转，内迷宫圈与壳体部分固定，处于静止状态。
When in work, the outer labyrinth cycle rotates together with a gyratory part, and the inner labyrinth cycle is fixed with a shell and stays in a static state.
工作时，外迷宫圈跟随回转部分一起旋转，内迷宫圈与壳体部分固定，处于静止状态。
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