单词	direction cosine
释义	direction cosine noun : any of the cosines of the three angles between a directed line in space and the positive direction of the axes of a rectangular Cartesian coordinate system —usually used in plural Word History First Known Use circa 1889, in the meaning defined above
随便看	idioblastic idioblasts idiochromatic idiochromatin idiocies idiocracies idiocracy idiocrasy idiocratic idiocratical idiocratically idiocy idiocyclophanous idiograms idiograph idiographic idiographs idiolalia idiolatries idiolatryes idiolatrys idiolect idiolectal idiolects idiom

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