Muab cov kev pabcuam tsim khoom tsim nyog los pab koj hloov pauv cov txheej txheem tsim khoom los ntawm engineering tsim thiab tsim khoom siv rau kev tshawb fawb engineering, tsim kev pov thawj thiab kev tsim khoom pov thawj, thiab qhia cov khoom loj tom ntej los ntawm cov txheej txheem pov thawj no