brachistochrone problem 最速降线问题 ; 线问题
problem of brachistochrone 最速降线的问题 ; 最速降线问题
Brachistochrone Curve 最速曲线 ; 最速降线问题
The brachistochrone problem 最速落径问题
N the curve between two points through which a body moves under the force of gravity in a shorter time than for any other curve; the path of quickest descent 最速降线 [maths]
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