外贸 关于B/L commercial invoice 份数

外贸 关于B/L commercial invoice 份数
Draft at sight for USD *****will be paid against presentation of the following documents:
2/3 original clean on Board B/L marked ''Freight Prepaid'' made out to order of the opening bank and notify the Applicant;
3/4 original signed Commercial Invoice showing 100% contract value;
3/4 original detailed and signed Packing list;
1 original and 2 certified copy of Certificate of Origin issued by the China Council for the Promotion of International Trade;
3/4 original Certificate of Quality and Quantity issued by Manufacturer;

3/4 original Certificate of Warranty issued by the Manufacturer;
3/4 original Certificate of Insurance covering 110% of total
invoice value for all risks showing claim payable in Hanoi, Vietnam;
3/4 original Test Report and Packing List signed by Manufacturer at factory before shipment;
Copy fax advise the shipment;
Receipt of DHL/Courier slip and beneficiary statement that one set original shipping documents (including: B/L, Commercial Invoice, Packing list, ...) and certified copy of Certificate of Origin shall be sent to the Buyer not later than 03 working days after B/L date.
L/C shall be valid for 21 days after B/L dated and freely negotiable, available by payment at Shanghai Pudong Development Bank Offshore Banking Department in China. The Buyer and the Seller will bear banking charges in their respective country, but charges for amendment or extension of L/C shall be born by the requester.
3/4 original signed Commercial Invoice 这个是什么意思
真心帮助我的人,我一定不会吝啬我的分数的.希望有人出现,我会加分的.
这个是合同上客户写的,怎么改啊? L/C, 好怕^^^^
请大家详细说说每一个条款好吗, 每一条最好能说一说,有没有陷阱? 先谢谢了.
我知道这些话的意思,我想知道的是::: 这里有没有软条款,特别是提单.请有经验的朋友真心帮忙.谢谢.

2/3是三份正本提单中的两份,那还有一份呢?
3/4也是类似的意思,四份正本单据中的三份,它这个合同没表达完全,可能在信用证中它会要求另外一套正本的单据直接寄给它,这个要求你不要接受.合同的条款你改成n/n,即分母与分子的数字一样这样好些.