It's a slippery thing; high-performance models, assessments, and descriptions abound, yet a satisfying all-inclusive dictionary-type definition eludes.

它是个难以捉摸的家伙；高绩效的模型、评估和描述比比皆是，然而还没有出现一个能让人满意的、全面的、字典式的定义。

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DARPA also wants to study programming models that allow developers to more easily design in security, dependability, power efficiency and high performance.

DARPA还想研究项目模型，允许开发者在安全性、可靠性、功效和性能方面更轻松地设计。

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Western Digital has slowly massaged its desktop hard drives into three categories: high-performance Black drives, mainstream Blue models, and energy-efficient Greens.

西数目前正逐渐将其桌面硬盘产品规整为三个系列：高端的黑盘系列，主流的蓝盘系列以及省电节能型的绿盘系列。

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From its inception in 1948, Porsche has been a leader in advancing vehicle performance, improving automotive safety and developing ever more fuel efficient technologies in its high-performance models.

ENGADGET: Porsche opens 918 Spyder plug-in supercar pre-orders, $845,000 gets you a ticket to ride

Some firms are already looking at all-electric high-performance models.

ECONOMIST: Fast cars will go even faster with electric power

Mercedes also recently added a feature on some of its high-performance AMG models that shuts down the engine during temporary stops.

FORBES: New Baby Benz a Sign of Things to Come: Efficient Luxury