When aluminum is hit, you can see a dent. Composites, though, spring back to the original shape, which could hide internal damage.

但是也有一个很大的缺点：当铝被撞击时，你会看到一个凹陷，但是复合材料看似能够变回原来的外表，内部却已经受损。

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When aluminum is hit, you can see a dent. Composites, though, spring back to the original shape, which could hide internal damage.

当铝受到撞击时会出现明显凹痕，而复合材料则会自动回复原来形状，使它所受的损伤难以察觉。

youdao

When aluminum is hit, you can see a dent. Composites, though, spring back to the original shape, which could hide internal damage.

当铝受到撞击时会出现明显凹痕，而复合材料则会自动回复原来形状，使它所受的损伤难以察觉。

youdao