A granular material designed for maximum stability should possess high internal friction to resist deformation under load . 为得到最大的稳定性而设计的颗粒材料应具有高内摩擦力而抵抗荷载下的变形。
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Test method for properties of investment casting shell - part 3 : determination of deformation under load at elevated temperature 熔模铸造型壳性能试验方法第3部分:高温荷重变形的测定