Quite a few books on operating system development have been written.

关于操作系统开发的书，已经有一些了。

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Several books are in print on deployment issues for specific flavors of the Windows operating system, but a good reference text on the general subject does not yet exist.

专门讲述特定于Windows操作系统的部署问题的书倒是出版了几本，但一般地讲述这个主题的优秀参考文章却还没有。

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Most of its units met their target operating margins in the most recent quarter, and order books are fuller than they were a year ago.

大部分的业务部门在最近几个季度内达到了运营利润的目标，订单比前年还多。

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In contrast, Google continues to innovate in many spheres of Internet and e-commerce activity, from mobile operating systems to books to social media.

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Yesterday, Doubleday filed a lawsuit in which he accused baseball commissioner Bud Selig of conspiring with an accountant who is also a consultant to Major League Baseball (MLB) to place an "artificially" low price on the team by manufacturing "phantom operating losses" in MLB's books.

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True, Wiley had to load debt on the books (now 66% of capital), but Blackwell's operating income (as in Ebitda) has risen 26% annually over the past three years, versus Wiley's 2%.

FORBES: Magazine Article