这将背离目前的高性能材料制造方式，目前的方式中，强化学键、昂贵的组成成分以及高耗能加工过程（在高温条件下）都是获得高性能材料所必需的。

This would be a departure from the current approach, where strong bonds, expensive constituents, and energy intensive processing (at high temperatures) are used to obtain high-performance materials.

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他有两方面的证据：第一，现存的灾难性撞击的残骸与Baptistina和她的后代有相同的成分，这是必要条件，但并非充分条件，因为含碳的球粒状陨石在其它小行星上也有；

That is a necessary but not a sufficient condition, as the type of rock involved, called carbonaceous chondrite, is found in other asteroids, too.

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利用形核理论，对大块非晶合金的形成条件、控制因素、合金成分设计思路、制备原理与技术等进行了分析与讨论。

Forming conditions, control factors, alloy design methods, manufacturing principle and technology of bulk amorphous alloys are analyzed and discussed using nucleation theory.

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