短語(yǔ)詞組短語(yǔ)grey multi -level evaluation method 灰色多層次評(píng)價(jià)方法analysis grey multi -level synthesis judgment 灰色多層次綜合評(píng)判informationization and grey multi -level evaluation 信息化灰色多層次評(píng)價(jià)grey -level statistics 灰度統(tǒng)計(jì)信息horizontal grey -level projection 水平灰度投影vertical grey -level projection 垂直灰度投影 返回 grey level