at 90 days after

At 90 Days After Sight For Full Ivoice Value D/P at 90 days after sight 和D/A at 90 days after sight 有何区别, DRAFTS AT 90 DAYS AFTER SIGHT 指见票后90天.见什么票? 90 days L/C after BL date upon presentation of documents at 英语翻译Terms of payment:by deferred payment at 90 days after de SHIPMENT AT 90 DAYS AFTER THE DATE OF L/C,ISSUE 则装运日如何掌握? 信用证42C DRAFTS AT：AT 90DAYS AFTER B/L DATE FOR 100 PCT OF INV 信用证 42C DRAFTS AT 180 DAYS AFTER SIGHT D/P AT 30 DAYS AFTER SIGHT 和D/A AT 30 DAYS AFTER SIGHT有何区别,各 大哥大姐~D/P AT 30 DAYS AFTER SIGHT和D/A AT 30 DAYS AFTER SIGHT有何 D/A AT 30 DAYS AFTER SIGHT 比采用D/P AT 30 DAYS AFTER SIHGT 承担风 at 30 days after sight 与 at one month after date 的区别是什么?