然后芯片同志发动机转动轮胎或踩下刹车。
These chips then signal motors to turn the wheels or make the brakes work.
转动轮可与轮毂滚动摩擦，也可与轮胎滚动摩擦。
The rotary wheel can conduct rolling friction with wheel hubs, and can also conduct rolling friction with tyres.
转动轮的旋转轴线与轮胎的旋转轴线垂直。
The rotary shaft line of the rotary wheel is vertical with that of the wheels.
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