与脆化温度较高的相比，脆化温度较低的材料在低温下性能保持率较高。

Compared with the plastics that had high brittle temperature, the plastics that had low brittle temperature had a higher retention of property.

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与脆化温度较高的相比，脆化温度较低的材料在低温下性能保持率较高。

Compared with the plastics that had high brittle temperature, the plastics that had low brittle temperature had a higher retention of property.

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