Installation is straightforward. The software is supplied as a.jar file which ACTS as a drop in replacement for the Lucene.jar.

该软件是以。jar文件提供的，用来替代Lucene的。jar文件，因此安装非常简单。

youdao

While the Spring 1.3 release is intended to be a drop-in replacement, there are some breaking changes to be aware of for those that interact closely with the internal APIs.

虽说Spring 1.3可以直接替换掉以前的版本，但对于那些使用了其内部API的开发者来说还是需要注意某些变化。

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A window with the graphical elements in the user interface and allows the user to just drag and drop replacement images over them.

这款软件在窗口中列出了用户界面的各个图形元素，允许用户通过拖放动作来替换各个图标。

youdao

The Aircell Smartphone will be backward-compatible with all Aircell Axxess communications systems currently in production, and available as a drop-in replacement for the company's prolific Aircell Axxess flush-mount handset.

ENGADGET: Aircell announces world's first 'airborne smartphone'

Sapphire Energy earlier this month began production of a drop-in replacement oil made from algae.

FORBES: Audi Places Its Biofuel Bets On Joule

Meanwhile, Kior last month said it received EPA approval for a drop-in replacement fuel from wood chips using a pyrolysis process adopted from the oil refining business.

FORBES: Audi Places Its Biofuel Bets On Joule