An irrevocable and transferable L/C.

不可撤销的，可转让的信用证。

youdao

It can be revocable or irrevocable and can revolve in relation to time or value.

它可以是可撤销的或是不可撤销的、可旋转时或价值。

youdao

We are pleased to inform you that we have opened an irrevocable and confirmed letter of credit.

本公司很高兴通知贵方，本公司已开立了一张不可撤消的保兑信用证。

youdao

It is terminal,final and irrevocable.

VOA: standard.2009.08.24

It is clear the opt-out election is irrevocable and is typically made after the IRS has calculated a proposed miscellaneous offshore penalty.

FORBES: FATCA Blues? Opt Out Of IRS Offshore Program

The trustees and successor beneficiaries continue the uninterrupted administration and benefit of the irrevocable assets and income.

FORBES: How To Cut State Death Taxes -- Without Moving

Mr Miliband has asked a number of questions to ministers since the leadership election, but he used his first substantial Commons contribution to warn MPs that the legislation "aims at irrevocable change and threatens real harm".

BBC: David Miliband castigates ministers over NHS changes