Experimental study on the horizontal crack in rail-web by fatigue precracking on MTS TestStar four column load frame fatigue machine is introduced.是什么意思_Experimental study on the horizontal crack in rail-web by fatigue precracking on MTS TestStar four column load frame fatigue machine is introduced.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句