wheel and axle
plural of rotorstator
A simple machine consisting of a wheel (or similar lever) that turns an axle around which a cord is wound; its mechanical advantage is the ratio of the diameters of the wheel and axle.
plural of doomwatcher
In a folkloristic manner.
エンジニアは、重い荷物を持ち上げるために力を増幅する車輪と軸の仕組みを説明した。
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DiQt
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