OmegaT

做过大量翻译的人肯定知道TraDOS之类的电脑辅助翻译软件。这些软件采用所谓的CAT技术，和金山快译的词词替换不是一个概念，可以更好地完成翻译工作。
OmegaT就是一款免费的CAT翻译软件。

If you are a translator, you must know TraDOS, but this one is free one though a bit weaker!
OmegaT

OmegaT is a free translation memory application written in Java. It is a tool intended for professional translators. It does not translate for you! (Software that does this is called "machine translation", and you will have to look elsewhere for it.) OmegaT has the following features:

• Fuzzy matching
• Match propagation
• Simultaneous processing of multiple-file projects
• Simultaneous use of multiple translation memories
• External glossaries
• Document file formats: plain text, HTML, OpenOffice.org/StarOffice (the latter has excellent conversion filters for MS Word, Excel, RTF)
• Unicode (UTF-8) support: can be used with non-Latin alphabets
• Compatible with other translation memory applications (TMX Level 1)

OmegaT is a Java application that runs on platforms including Windows, Mac OSX, and Linux.