单词	双v形
释义	同X形--双V形
随便看	quality system quality system assessor quality system procedure quality system review quality term quality tese quality test quality time quality-type corporate quality uncertainty quality unit quality variation quality verification quality verification test quality verification test--qvt quality verification test，qvt qualität qualité qualité {fr.} qualitātswein qualization qualization error qualle quallenpolyp qualley worker