[经] reserve deposit requirement system
guī dìng chǔ bèi cún kuǎn zhì dù ㄍㄨㄟ ㄉㄧㄥˋ ㄔㄨˇ ㄅㄟˋ ㄘㄨㄣˊ ㄎㄨㄢˇ ㄓˋ ㄉㄨˋ