aging effect

• 老化效应

aging effect的用法和样例：

例句

1. After having solved the aging problems of beams,the long term ag-ing 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。