The canals and ditches formed a complete irrigation system.

The model shows the whole project of the irrigation system.

这个模型展示该灌溉系统的全貌。

The rivers merge just north of a vital irrigation system

就在一个重要的灌溉系统的北边，这些河流交汇在一起。

Terms: by irrevocable letter of credit opened by a1 bank in our favor.

付款条件：以本公司为受益人的一流银行开出的不可撤销信用证。

We'd like you to pay us by confirmed, irrevocable letter of credit as usual.

我们希望你们照常采用保兑的、不可撤销的信用证。

Terms of payment: irrevocable letter of credit to be drawn at sight.

该装运的付款方式：不可撤销即期信用证。

The goods we purchased last time was paid by confirmed, irrevocable letter of credit.

我方向贵方订购的上批货物采用保兑的、不可撤销信用证付款。

Payment by irrevocable letter of credit if any orders booked.

不可撤销信用证支付任何定单。

It Is an irrevocable letter of credit which can not be changed.

这是一份不可取消信誉证、是不能更改的。

Payment: by irrevocable letter of credit or cheque with order.

付款：不可撤销的信用证或订购支票。

Payment by irrevocable letter of credit at sight is our usual practice.

以不可撤消的即期信用证支付是我方的惯例。

I'll pay by irrevocable letter of credit, as usual.

我会按惯例以不可撤销信用证方式付款。

We only accept payment by confirmed irrevocable letter of credit.

我们只接受保兑的不可撤销的信用证付款。

We ask you to use an irrevocable letter of credit.

我们要求您们开一张下可撤销的信用状。

In general, payment will be made by irrevocable letter of Credit negotiable against presentation of shipping documents.

关于付款方式，我们一般采用不可撤销的使用凭证，凭货运单证议付。

We insist on payment by irrevocable sight credit.

我们坚持凭不可撤销的即期信用证付款。

A preliminary advice of the issuance or amendment of an irrevocable Credit ( pre-advice), shall only be given by an Issuing Bank if such Bank is prepared to issue the operative Credit instrument or the operative amendment thereto.

只有准备开立有效信用证或修改书的开证行，才可以对不可撤销信用证或修改书发出预先通知书。

An irrevocable Credit constitutes a definite undertaking of the issuing bank, provided that the stipulated documents are presented to the nominated bank or to the issuing bank and that the terms and conditions of the credit are complied with.

对不可撤销的信用证而言，在信用证规定的单据全部提交指定银行或开证行，并且这些单据又符合信用证条款的规定时，便构成开证行的确定承诺。

Enclosed is your form for an irrevocable credit of$ 10,000 to be opened with the Bank of Chicago, in favor of Smith Food Company.

兹附上你们的表格，要求在芝加哥银行开立金额为10000美元的以史密斯食品公司为抬头的不可撤销信用账户。

The buyer must get his bank to issue an irrevocable credit in favour of the seller.

买方必须通过其银行开出以卖方为收款人的不可撤销的信用证。

We have open a confirm and Irrevocable credit In your favour.

以贵方为受益人，我们开出不可撤销的保兑信用证。