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1أخبار
المصدر: Pakistan Engineering Review; 10/16/2020, Vol. 45 Issue 20, p1-15, 15p
مصطلحات موضوعية: BALLAST (Railroads), MAINTENANCE, EXPRESS highways, ACOUSTIC emission testing, INTELLIGENT transportation systems, FAST Fourier transforms
المصدر: Pakistan Engineering Review; 10/16/2020, Vol. 45 Issue 20, p1-15, 15p
مصطلحات موضوعية: BALLAST (Railroads), MAINTENANCE, EXPRESS highways, ACOUSTIC emission testing, INTELLIGENT transportation systems, FAST Fourier transforms