Most shape memory alloys can only "cycle" (or change form) a limited number of times before the material gives out.

大部分形状记忆合金只能“循环”(或称改变形态)有限次数，之后材料就会疲劳了。

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You have no memory of any material, texture, shape.

你对于任何的物质、质地或者是形状都无法保有记忆。

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Ceramic composites, nanotechnology and shape memory alloys figure prominently in the airframe and ultra high bypass ratio propulsion system construction.

陶瓷合成材料、纳米技术和外形记忆合金卓越地体现于其机体和超高涵道比的推进系统结构。

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The so-called autonomous adaptive structures are part of a long-term research into shape-memory healing which could impact long-term developments of implantable medical devices, for instance.

ENGADGET: Shape-memory polymer knows when it's hurt, fixes itself

To replicate this, the vehicle uses shape memory alloys - materials that "remember" their original shape.

BBC: Robotic jellyfish fuelled by hydrogen invented

The material uses what the researchers are calling 'shape-memory' polymers and have a fiber optic network embedded within them which acts as the damage sensor as well as the heat delivery system.

ENGADGET: Shape-memory polymer knows when it's hurt, fixes itself