到期付款 due payment; payable at maturity; payment at maturity; payments at maturity; sp
定期付款 due payments; pay on term; payable after date; payable at a definite time; payable at a fixed date; payable on a fixed day; payment of terms; payment on terms; payment terms; periodic payments; regular payment; scheduled payments
即期付款 at call; d/d demand draft; immediate payment; payment at sight; payment on demand; payments on demand; sight payment; spot cashcash downcash on the nail