Because RPR is a layer 2 MAC-based technology, it can operate over multiple physical layers, including SONET.

由于RPR是第二层基于MAC的技术，所以它能在多个物理层上工作，包括SONET。

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Figure 2 shows the relevant window section on Mac OS X.

图2显示Mac OS x上的相关窗口。

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Figure 2 shows how to activate an alert dialog from a native Mac OS X menu.

图2说明如何从本地Mac OS X菜单激活警告框？

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It had narrowly avoided bankruptcy, and Steve Jobs' return as CEO a few years earlier was turning the company around, but the market share of its products -- then almost exclusively Mac computers -- was dismal, at about 2% worldwide.

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But Edmund was beaten 6-4 7-6 (7-2) by Mac Styslinger of the United States.

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Valve has released its long-awaited Portal 2 game for Mac, PC, PS3 and Xbox.

FORBES: Morning Tech Wrap: Apple, Portal 2, Amazon