گالری تصاویر آموزشی Open in pop-up windowturbine Open in pop-up windowship hull Open in pop-up windowPressure in aerostat Open in pop-up windowoptimum propeller design Open in pop-up windowmarine propeller Open in pop-up windowflap and foil Open in pop-up windowair propeller Open in pop-up windowvorticity in propeller Open in pop-up windowthermal-analysis آگوست 6, 2017 شرکت فنی و مهندسی دانش گستران ثاقب