久青草国产手机视频免费观看_毛片网站是多少_亚洲视频中文_一区二区高清在线

首頁英語詞典productivityproductivity英英釋意

productivity

英 [pr?d?k't?v?t?] 美[,prod?k't?v?ti]
  • n. 生產力;生產率;生產能力

英英釋意


1. the quality of being productive or having the power to produce
2. (economics) the ratio of the quantity and quality of units produced to the labor per unit of time