[经] bills discounted with collateral securities

fù zhèng quàn dān bǎo de piào jù tiē xiàn ㄈㄨˋ ㄓㄥˋ ㄑㄩㄢˋ ㄉㄢ ㄅㄠˇ ㄉㄜ˙ ㄆㄧㄠˋ ㄐㄩˋ ㄊㄧㄝ ㄒㄧㄢˋ