The ways and the mechanisms of grain refinement in Cu-Base shape memory alloys are especially described. The effect of grain refinement on mechanical and memorial properties are discussed.

介绍了铜基形状记忆合金的晶粒细化方法及机理，论述了晶粒细化对铜基形状记忆合金力学性能和记忆性能的影响。

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Because many palaeontologists base their work on the shape of fossils alone, their methods of conservation are not designed to preserve DNA.

由于许多古生物学家的工作仅基于化石的形状，因此其保存方法并非旨在保存 DNA。

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Start to colour inside the fire's base, following the shape of the flames.

开始根据火焰的形状在火焰的基底内部着色。

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The bottle is a direct copy from the archives, with an inverted cone-shape base and a taller-than-average brush handle.

WSJ: Cosmetics Flashback

The GT Speed has the same great shape as its more sedate base model, but a closer look reveals a lowered suspension and racy cues that we noticed etched in the body.

FORBES: The Temptation of Driving the 2013 Bentley GT Speed

If you can grab a couple of the other guy's base states, you're in great shape.

NPR: States' Party Allegiances Shifty