TS: As it turns out, this device kind of comes in handy, because I don't have to have the fine motor skills to do, that I can operate slides, which is more of a mental process.
TS：结果是 这装置越来越便携了， 因为我不一定需要 好的控制电源的技术， 我也能控制圆锥的滑动， 这其实是一项脑力运动，