短语词组短語count -rate meter 計數率計meter count -rate 計數率計log count -rate meter 對數計數率計digital count -rate meter 數字式計數率計;數字記數率儀total gamma -ray count-rate 伽馬射線縂計數率log -count-rate recorder 對數計數率記錄器claimant -count rate 登記失業率 返回 count rate