The results show that the life of fatigue is increased remarkably,the period of crack initiation is delayed and the propagation rate of crack is decreased after RE N C B diffusion of the steel.是什么意思_The results show that the life of fatigue is increased remarkably,the period of crack initiation is delayed and the propagation rate of crack is decreased after RE N C B diffusion of the steel.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句