如果减震材料长时间在高度压力下会发生厚度逐渐减少的现象，这叫压缩变形。
Compressive Creep is the gradual loss of thickness that may occur if a cushioning material is.
对厚度较薄或要求外形尺寸严格的产品，返修时应采用砂轮打磨等方法，以防变形。
Grinding wheel method has to be taken to avoid deformation during rework for think thickness material or strict dimension requirement parts.
计算结果表明，在进行复合地基载荷试验时，载荷板下的垫层厚度及变形模量会对复合地基的荷载传递特性以及沉降产生影响。
The numerical calculation show that load transfer and settlement of composite groundsill is affected by the thickness and modula of soil layer .
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