短语词组短语count -rate meter 计数率计meter count -rate 计数率计log count -rate meter 对数计数率计digital count -rate meter 数字式计数率计;数字记数率仪total gamma -ray count-rate 伽马射线总计数率log -count-rate recorder 对数计数率记录器claimant -count rate 登记失业率 返回 count rate