[经] net profit on net working capital ratio
jìng liú dòng zī běn de jìng lì rùn ㄐㄧㄥˋ ㄌㄧㄡˊ ㄉㄨㄥˋ ㄗ ㄅㄣˇ ㄉㄜ˙ ㄐㄧㄥˋ ㄌㄧˋ ㄖㄨㄣˋ