Payment should be 30% D/P The rest upon shpmnt

Payment should be 30% D/P The rest upon shpmnt payment should be made____sight draft 中间填什么 the signature should be the same as account payment signing arrangement什么意思?thanx! 是否有make payment（支付钱）这个词组?我在我的语法书上看到这样一个句子：the seller demanded that payment should be made within five days .我就想到是不是有make payment这个词组? 英语翻译can you just make a payment that should be charged for the part of the order that have been done? 为什么不用should?Can I pay the bill by check?Sorry,sir.But it is the management rules of our hotel that payment shall be made in cash. payment payment should be should be L/C 30days payment should be should do呢？ two should be enought.should 30% down payment with the balance to be paid on receipt of the fax of B/L. the payment shall be made within 30 days after (船开以后） 请问括号里的怎么翻译 英语翻译To comply with our purchase policy and expedite the payment of invoices without delay,invoices should be supported by signed delivery notes clearly describing the parts or service provided and the date supplied. 收到货后7天付款 英语因为要做正规的合同,所以要一个准确的表述,我的翻译是balance payment should be paid 14 days upon receipt the goods 英语翻译这是什么结构,是倒装吗,Should the amount exceed that figure,payment by letter of credit will be required.3,4楼的回答也很好，希望回答我的其他问题，