Doing so provides a layer of abstraction around the cached file.

这样可为缓存后的文件提供一个抽象层。

youdao

By using this layer of abstraction, consuming applications can easily swap out the dictionary provider they use.

通过这个抽象层，消费应用程序很容易切换使用的词典提供程序。

youdao

This does not exclude the OO viewpoint adopted by RUP, but rather implements another layer of abstraction above it.

这并没有排除 RUP 采用的 OO 观点，而是在其上实现了另一个抽象层。

youdao

The TAL provides a layer of abstraction that takes care of any difference in devices capabilities or controls, so that software built using it will continue to run on anything added to the BBC's certified list without the need for a new version.

ENGADGET