词汇	covariance difference
释义	covariance difference 协方差差分
随便看	zone melting and liquid metal cooling zone melting and refining zone melting apparatus zone melting by electrical discharge zone melting chromatography zone melting crystallization zone melting furnace zone melting growth zone melting method zone-melting method zone melting process zone-melting process zone melting purification zone melting recrystallization zone melting technique zone-melting technique zone-melting temperature zone melting with focused radiation zone melting with laser zone melting without crucible zone meridian zone metering zone metering system zone method zone-method