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

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。

Import of aircraft generally require outside delivery, and delivery, full payment.

进口飞机一般需要在境外交付, 并且在交付时, 付清全款.

Overseas tickets sale will start simultaneously at designated travel service agencies.

境外门票销售也同步启动,主要由世界各地的指定旅行社代理销售.

Several cabinet ministers said the bill would discourage foreign investment.

一些内阁大臣指出,机场的提案会挫伤境外投资者的积极性.

Irrespective of percentage ( IOP) bring the majority of money-losing firms into the black

不受损失百分比限制使大多数亏损企业扭亏为盈

A total of 435 subjects, aged 21~ 75 years, were divided into 5 groups: 130 with normal menstruation, 81 premenopausal irregular menstruation, 172 after natural menopause over one year, 13 artificial menopause and 39 complicated with other diseases.

435例年龄21～75岁，分5组：正常月经130例，绝经前月经失调81例，自然绝经后172例，人工绝经13例，合并其它疾病39例。

Two groups of patients with symptoms of varying degree of improvement, the treatment group for the distention and pain in the chest and hypochondriac region and irregular menstruation or dysmenorrhea improving effect better than the control group ( P0.05).

两组患者伴随症状均有不同程度的改善，治疗组对于胸胁胀痛及月经不调或痛经的改善作用明显优于对照组（P0.05）。

We investigated 1528 VDT women operators, menses and pregnancy in Shanghai. The result was found that the rate of irregular menstruation in exposure group is significant higher than that in control group ( P < 0.0001).

对上海市1528名VDT操作女工月经和妊娠状况调查，发现月经周期、经期和经量异常发生率高于对照组，其中经期延长，经量增多具有统计学意义（P＜0.0001）。

The prevalence rates of irregular menstruation, painful menstruation, nervous before the menses, pernicious vomiting, natural abortion increased with the working age ( P < 0.05).

其中月经周期紊乱、痛经、经前紧张症、恶阻、自然流产率随工龄增长而增加，并有统计学意义（P<005）。