[经] ratio of receivable to inventories

yīng shōu kuǎn xiàng duì cún huò de bǐ lǜ ㄧㄥ ㄕㄡ ㄎㄨㄢˇ ㄒㄧㄤˋ ㄉㄨㄟˋ ㄘㄨㄣˊ ㄏㄨㄛˋ ㄉㄜ˙ ㄅㄧˇ lv4