Longtermaging lowered the low temperature performance of rubber powder asphalt mixture.
长期老化降低了橡胶粉沥青混合料的低温性能。
2
After having solved the aging problems of beams, the longtermaging effect of a solid propellent grain is also analyzed as an example.
在对梁的受拉伸与自重情形下的老化作了分析后，举例分析了真实固体火箭发动机药柱的长期老化效应。
3
The investigations of tensile properties of the second generation single crystal superalloy DD6 after longtermaging at elevated temperature were presented.