The familiar windowed desktop of any operating system is simply a layer on top of the core code that makes it easier for you to interact with your computer.

任何操作系统中的桌面环境只是系统核心之上简单的一层，使用它能更方便地和计算机交互。

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Photo: Top of an Intel core i7 chip. Photo by pc_gamer.

图：英特尔7寸核心芯片的顶部。

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The framework itself is built using Spring running on top of GigaSpaces' core product the eXtreme Application Platform (XAP).

这个网站所使用的框架是运行在GigaSpaces的核心产品eXtreme应用平台(xap)之上的Spring。

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He says many,if not all, of the top American colleges once had a core curriculum a set of courses required for all students.

VOA: special.2009.10.22

A political scientist at the University of Zimbabwe, Eldred Masunungure, says the police are the most serious offenders of the political agreement and the hard core of top officers are determined to hang on to power for as long as possible.

VOA: standard.2009.09.15

There was a core of top university officials that knew things and didn't act.

NPR: Column: No Rescuing Paterno's Reputation

The Yanks and Phils are two of the biggest spenders in the game, both in terms of keeping their core of top players and going out to sign the best free agents.

FORBES: Money Talks: Yanks, Phils Likely To Meet Again

XE300M22-A01US carries a 2.5GHz, Sandy Bridge-era dual-core chip on top of the usual 4GB of memory and 16GB solid-state drive.

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