承兑后若干天付款 days after acceptance

出票后若干天付款 At xx days after date ; at days after date ; At...days after date

见票后若干天付款 Atx x days after sight ; d/ d.s ; at days after sight ; d.s

若干天后 some days later

提单签发后若干天付款 At...days after B/L

第一批装船后若干天内 within ...days after dispatch of the first lot

发现地球二若干天 discover earth ii sone day