The fatigue test results show that the higher shock impedance of overlays,and the higher laser power density,the greater the increase of fatigue life of aluminum alloy.是什么意思_The fatigue test results show that the higher shock impedance of overlays,and the higher laser power density,the greater the increase of fatigue life of aluminum alloy.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句