To build fully automated systems that analyze the information contained in face images, robust and efficient face detection algorithms are essentially required.

为了构造自动处理人脸图像的信息系统，首先需要鲁棒、有效的人脸检测算法。

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The computation of function limit is essentially required in higher mathematics education. This paper sums up a lot of common skills and methods of computing function limit.

函数极限的计算是高等数学教学的基本要求，本文归纳了函数极限计算的一些常见方法与技巧。

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At first, the logic behind this sounds reasonable: If you change this data element from optional to required, you essentially duplicate error processing that occurs elsewhere in the system.

首先，整个过程背后的逻辑是合理的：如果您将这项数据元素从可选改为必需，那么您基本上就是复制了系统中其他地方所使用的错误处理过程。

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He explains that an MBA is essentially required for careers in investment banking and strategy consulting and helpful for those in large corporations.

FORBES: Venture Capitalist Mark Suster On Getting An MBA

While prior governance and risk control (GRC) systems for IT were essentially large spreadsheets that required a good deal of manual entry, Brinqa actively listens to machine data and other low-level outputs from IT systems, then lets users assign and customize risk indicators for their particular organization.

FORBES: Elevating the IT Risk Management Conversation to the Boardroom

The Russian vehicle essentially took a shortcut that required precisely timed steering over the course of four orbits, putting three crew members (including one American astronaut) on the space station at 10:28pm ET -- just five hours and 45 minutes after takeoff from Kazakhstan.

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