It's a compatibility layer for Windows apps, so that they can run unmodified on top of Linux.

它对Windows程序是兼容的，所以你可以不改变程序的前提下在Linux运行它。

youdao

The Castor developers also plan to support JAXB in Castor, probably using some sort of compatibility layer.

Castor开发人员还计划在Castor中支持JAXB，可能是通过使用某类兼容性层来实现这一点。

youdao

InfoQ: will your platform work only for Safari, or will you be providing a compatibility layer for all browsers?

InfoQ：你们的平台只能用于Safari么，会为所有浏览器提供兼容层么？

youdao

Like its competitor, Alien Dalvik, OpenMobile is positioning its Application Compatibility Layer to OEM manufacturers rather than consumers.

ENGADGET: OpenMobile demos ACL for MeeGo, promises 100 percent compatibility with Android apps (video)

The Android apps should move over as well thanks to the Application Compatibility Layer in Tizen with minimal work.

FORBES: Tizen Is The Fulcrum Samsung Can Use Against Android And Google

OpenMobile is a new company on the application compatibility scene whose primary product, the Application Compatibility Layer, promises to bring Android's large volume of apps to smaller platforms.

ENGADGET: OpenMobile demos ACL for MeeGo, promises 100 percent compatibility with Android apps (video)