For sharp-focusing system, the expressions for the position of optimum image plane and its corresponding ETF are also given.

文中还对锐聚焦系统给出了最佳归一化离焦量的表达式和相应的ETF近似公式。

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Moguls aside, the authors' analysis? While at times idiosyncratic? Provides a sharp reminder of the importance of focusing on competitive advantage and on the barriers that enable it.

抛开这些巨头来看，作者们的分析尽管有时离经叛道，但确实尖锐地提醒了人们关注竞争优势的重要性，并关注那些造成这种优势的壁垒。

youdao

Moguls aside, the authors' analysis-while at times idiosyncratic-provides a sharp reminder of the importance of focusing on competitive advantage and on the barriers that enable it.

抛开这些巨头来看，作者们的分析尽管有时离经叛道，但确实尖锐地提醒了人们关注竞争优势的重要性，并关注那些造成这种优势的壁垒。

youdao

The superior accuracy of the 39-point AF system and nine cross-type sensors delivers razor sharp images by focusing precisely on the subject you choose.

ENGADGET: Nikon reveals D5200 SLR with D7000-taunting specs: 24MP sensor, 39-point AF, wireless port (hands-on)

Sharp, Clear 20x Lens: The FinePix F800EXR camera uses the FUJINON 20x Super Wide-Angle optical zoom lens that produces crisp high resolution results throughout the focal range, from 25mm wide-angle to 500mm telephoto, along with a Super Macro Mode that allow sharp focusing down to 5cm delivering the most brilliant detail possible.

ENGADGET: Fujifilm unwraps FinePix F800EXR camera with wireless sharing to Android, iOS