单词	递归时间
释义	递归时间recurrence time
随便看	color difference computer，codic color difference fier color-difference formula color difference meter color-difference meter color difference meter， colour difference meter color difference signal color-difference signal color difference signals color dimorphism color disc color disc-- colour disc color discharge printing color discrimination color discrimination test color disc， colour disc color disk color dispersion color display color display-- colour display color displays color display， colour display color-distinction color distortion color doctor