Experimental Study of the Casting Technological Factors on the Surface Microstructure of Grains of Turbine Blade Castings in Ni Based Superalloy是什麼意思_Experimental Study of the Casting Technological Factors on the Surface Microstructure of Grains of Turbine Blade Castings in Ni Based Superalloy在線翻譯_英語_讀音_用法_例句