[经] verification of perpetual inventory

yǒng xù pán cún de hé duì ㄩㄥˇ ㄒㄩˋ ㄆㄢˊ ㄘㄨㄣˊ ㄉㄜ˙ ㄏㄜˊ ㄉㄨㄟˋ