the locus of points中文翻譯

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A plane curve formed by the locus of points equidistant from a fixed pne and a fixed point not on the pne
拋物線到一固定直線和不在直線上某一固定點等距的點的軌跡所形成的平面曲線

The locus of points in a chromaticity diagram that represents chromaticities of the radiation of planckian radiators at different temperatures
色度圖中，表征不同溫度下黑體輻射的色坐標的點的軌跡。