【上位】 a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines) 円形の枠と輻（あるいは堅い円盤）からできていて軸や心棒の回りを回転する（車や他の機械にあるような）単純な機械。
日/英 »
【上位】 a mechanism that controls the operation of a machine; "the speed controller on his turntable was not working properly"; "I turned the controls over to her" 機械の操作を制御する機構。
日/英 »
