The ship was buried, beyond retrieval, at the bottom of the sea.
船已葬身海底，无法打捞。
By then the situation was beyond retrieval(= impossible to put right) .
到那时，局势已无法挽回。
methods of information retrieval
数据检索方法
1.(可)取回,(可)恢复,(可)挽回;(可)修补,(可)修正,(可)更正;(可)弥补,(可)补偿
1.the process of getting something back that was lost or not in its usual place
2.the process of getting back information stored inside a computer in order to use it again
1.raised from the issue can see that we need only to achieve the right data insertion, deletion and retrieval of such a software.
从问题的提出可以看到，我们需要的只是能实现对数据的插入，删除，检索这样一个软件。
2.The Jobs table can then be indexed by student ID, and retrieval of every job worked can be completed in an orderly and efficient way.
随后可以通过学生ID对Job表建立索引，且检索每份从事过的工作将会以一种有序且高效的方式进行。
3.Previously the sort of passive receive files, passive access files in the retrieval gradually create and using archives initiative.
以前那种被动的接收档案、被动的查阅档案逐步让位于主动的检索和利用档案。
4.In our customization example, we combine these two approaches in such a way that the retrieval is a foreground process for up to 15 seconds.
在我们的定制例子中，将这两种方式结合起来，获取操作在最多15秒内作为前台过程。
5.Such written permission must also be obtained before any part of this publication is stored in a retrieval system of any nature.
同样任何国家的检索系统在储存本出版物信息前都需要得到书面授权。
6.His heroic conduct during the retrieval innumerable lives, afterward is as if always creating the serious destructiveness .
他的英勇行为在挽救无数的生命同时，似乎总在事后造成严重的破坏性。
7.The research indicates that this method is of better convergence and higher retrieval efficiency.
研究表明，该方法具有较好的收敛性和较高的搜索效率。
8.Computers will enable remarkably sophisticated retrieval techniques, if only we are able to break our thinking out of its traditional box.
只要我们能够突破传统思维，计算机将会带给我们强大而精密的检索技术。
9.The system can be embedded into today's online scientific used in literature retrieval systems, which has a strong value.
该系统可以被嵌入到网络科技文献检索系统中使用，具有很强的应用价值。
10.It was proved by the experiment that this method could improve the automation degree and retrieval accuracy in case based design.
实验研究表明，该方法应用到具体设计领域，可以提高基于实例设计的自动化程度和检索的准确度。