assayblock covariance化验: chemical examination; labora ...质: nature; character; essence块: piece; lump; chunk段: section; segment; part; para ...点块段协方差: point-block covariance下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:化验质块段协方差，即可在微信中查询翻译
