The polymer modifier can improve the performance of the paving asphalt on flexibility at low temperature and reversible elastic deformation.
聚合物用作改性剂可以提高沥青的软化点，改善沥青的低温柔韧性，提高延度，使沥青产生可逆的弹性变形。
It was shown that the swelling-shrinkage deformation of expansive soils was not completely reversible.
结果表明膨胀土的胀缩变形过程并不完全可逆。
The formation of granular relief and martensite on the specimen surface seems to be reversible during deformation under loading.
加载变形过程中，样品表面形成的马氏体和晶粒状浮雕具有可逆性。
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