你可以滑动圆柱体边上的滑钮设定初始值，然后转动手柄来计算结果。
You set your initial figures by sliding knobs along the side of the cylinder, then turn the crank to compute the results.
你可以滑动圆柱体边上的滑钮设定初始值，然后转动手柄来计算结果。
You set your initial figures by sliding knobs along the side of the cylinder, then turn the crank to compute the results.
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