基本解释[數學]模的直和英汉例句雙語例句When a direct sum of lifting modules is lifting is studied here.研究了提陞模的任意直和在什麽條件下仍是提陞模。direct sum of modules更多例句词组短语短語external direct sum of modules 模的外直和direct sum of modules更多词组专业释义數學模的直和