irrevocable

adj.

不能取消的；不可改变的；不能挽回的；

irrevocable letter of credit不可撤销信用证

irrevocable credit不可撤销信用证

1. The doom which I have passed upon her is irrevocable.
   我对她下的判决是不能挽回的。
2. We ask you to use an irrevocable letter of credit.
   我们要求您们开一张不可撤销的信用状。
3. The decision has been made and is irrevocable.
   木已成舟已作出决定，无法反悔
4. His life was set on an irrevocable course.
   他的生活道路不可改变。

Coping with irrevocable loss.
Irrevocable transactions and their applications
Irrevocable transactions and their applications.
Irrevocable Belief Revision in Dynamic Doxastic Logic
Alternating-time temporal logics with irrevocable strategies
Towards generating irrevocable key for cryptography from cancelable fingerprints
Irrevocable cryptographic key generation from cancelable fingerprint templates: An enhanced and effective scheme
An Effective Scheme for Generating Irrevocable Cryptographic Key from Cancelable Fingerprint Templates
Social loafing vs. social enhancement: Public goods provisioning in real-time with irrevocable commitments
Rejected and excluded forevermore, but even more devoted: irrevocable ostracism intensifies loyalty to the group among identity-fuse...