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The stress and deformation are in design range, and it works normally.
应力和变形均在设计允许范围内，工作性态正常。
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Heat: the temperature range in the use of non-deformation.
耐热性：在使用温度范围内不变形。
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Heat: the temperature range in the use of non-deformation.
耐热性：在使用温度范围内不变形。
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