[经] non-accumulative sinking fund, non-cumulative sinking fund
fēi lěi jī cháng zhài jī jīn ㄈㄟ ㄌㄟˇ ㄐㄧ ㄔㄤˊ ㄓㄞˋ ㄐㄧ ㄐㄧㄣ
非累积偿债基金