Time of Shipment ：During Jan.2009
time of shipment during jan.2009 翻译为"一月份装船" 到底最迟什么时候呢
根据下文：
the buyers shall open through a bank acceptable to the seller an irrevocable letter of credit payable at sight of reach the seller 30 days before the monthe of shipment,valid for negotiation in China until the 15th day after the date of shipment.
Date and place of expiry为什么时候
time of shipment during jan.2009 最迟是不是Jan.31