求翻译：可撤销信用证)是指开证银行可以不经受益人同意，也不必事先通知受益人，在议付银行议付之前有权随时取消或修改的信用证。这种信用证对受益人缺乏保障，所以在实际业务中不常采用。不可撤销信用证(Irrevocable Letter of Credit)是指信用证一经开出，在其有效期内，若未经受益人及有关当事人的同意，开证行不得片面修改或撤销的信用证。只要受益人提供的单据符合信用证规定，开证行就必须履行付款义务。这种信用证上都明确注有“不可撤销”字样。是什么意思？

Revocable letter of credit) is the issuing bank can not agree upon the beneficiary, and without prior notice to the beneficiary, the negotiating bank for negotiation before the right to cancel or modify the letter of credit. Lack of protection for the beneficiaries of this credit, so rarely used in

) can be irrevocable letter of credit is the issuing bank may, without approval of the beneficiary, without prior notice to the beneficiary Bank, NEG has the right to cancel or amend before the letters of credit. Such letters to the beneficiaries, and therefore lack of safeguards are not often used

May abolish the letter of credit) is refers to the card bank to be possible not to agree after the beneficiary, also does not need to inform the beneficiary beforehand, in front of negotiating bank negotiation is authorized to cancel or the revision letter of credit as necessary.This kind of letter

Revocable letter of credit) refers to the issuing bank can without the beneficiary agrees, without prior notification to the beneficiary, before the negotiation Bank for negotiation has the right to cancel or modify the letter of credit. This letter of credit to the beneficiary no protection, so are

Revocable letter of credit) refers to the issuing bank can without the beneficiary agrees, without prior notification to the beneficiary, before the negotiation Bank for negotiation has the right to cancel or modify the letter of credit. This letter of credit to the beneficiary no protection, so are