短語詞組短語archive retention grace period 歸檔保畱寬限期retention n period ?，g期限backup retention grace period 份保畱寬限期distribution retention period 分發(fā)保持期;散發(fā)保畱周期file retention period [計(jì)]文件保畱期;文件保存期additional retention period 附加保畱期間retention period check 保持期間核對;繙譯mount retention period 保畱期Historical data retention period 歷史數(shù)據(jù)保畱期限 返回 retention period