... 热空气老化Hot air aging @168h/150°C 硬度变化Hardness Change 拉伸强度保持率Retention tensile strength ...
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Change your foreground color to black, the brush hardness to 0% and the opacity to 100%.
将前景色更改为黑色，画笔硬度设为0%，不透明度为100%。
When the correct temperature is obtained, there will be a marked change in hardness and other properties.
一旦获得正确的温度，硬度和其它性能都将有明显的变化。
Combining the tempering behavior with the grinding thermal model, the change in surface hardness due to grinding heat could be predicted.
通过合并磨削热模型和回火效应可以预测工件磨削后的表面硬度变化。
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