“direction numbers”的概念、定义、翻译、参考文献-科学参考

单词	direction numbers
释义	direction numbers [di`rek·shǝn ´nǝm·bǝrz] ^MATHEMATICS Any three numbers proportional to the direction cosines of a line in space. Also known as direction ratios.
随便看	Harrison's gridiron pendulum Harris process harrow harrowing harstigite Hartford loop hartite hartley Hartley formula Hartley oscillator Hartley principle Hartmann diaphragm Hartmann dispersion formula Hartmann flow Hartmann generator Hartmann lines Hartmann number Hartmann test Hartman's solution Hart-Park virus hartree Hartree equation Hartree-Fock approximation Hartree method Hartree units

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