residualadj.剩余的；残余的n.剩余部分；(复)追加酬金residual area残留面积residual gold残余金residual clay原生粘土,残留粘土residual gain剩余增益residual shim防磁钉,止钉residual film残留膜residual dust残留粉量residual drug药物残留residual loss残余损失,剩余损耗residual alum残留铝矾