短語詞組短語total l sum insured 總保額total contract sum 工程合同總造價total corrected sum of squares 平方和total -sum economic contract 全額經濟承包total variation sum of squares 總變差平方和total sum increase 總量增長total sum assured 總保額total sum of phosphorus 總磷total sum of phosphorous 總磷 返回 total sum