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。

youdao

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