It is found that shock toughness of powder forging part can be increased obviously by diffusion annealing for longtime.
发现长时间扩散退火可显著提高粉末锻件的冲击韧性。
2
On the condition of longtime seawater corrosion, the hydroxide ion diffusion coefficient and the chlorion diffusion coefficient of fly ash concrete are far smaller than th...
在长期海水侵蚀下,掺粉煤灰混凝土的氢氧离子扩散系数的氯离子扩散系数亦均远小于基准混凝土。
3
As human's needs for Fashion stay stable, these two Fashion systems and Diffusion Models will coexist and interact for a longtime.