percentreduction中文什么意思

压缩率

例句与用法

1. Overall , women who had used any oral contraceptive had a 50 percentreduction inthe risk of developing ovarian cancer than women who hadnever takenthe pill , the investigators report
   调查人员得出的总的数据显示，服用口服避孕药的女性患卵巢癌的几率比没有服药的低50 % 。