单词	Spectrum variance
释义	Spectrum variance 谱的零阶矩
随便看	external orifice of aqueduct of vestibule external orifice of male urethra external orifice of urethra external orifice of urethra and anus external orifice of uterus external orifices external or internal floating-roof tank External or material reality external os external oscillator external os of uterus external os of vervix external osseous acoustic pore external Ostium external otitis external otitis media external output record external overfire air external overflow external oversight external overvoltage external pacemaker external pachymeningitis external pachy-meningitis external package frame