1. Introduction Nui nā ʻāpana i hoʻohana ʻia i loko o nā ʻenekini jet a me ka hana turbine i loaʻa nā hiʻohiʻona nui o nā mea holo i loko, e like me nā valves, nozzles, a me nā turbine. He mea maʻamau ka paʻakikī o ka loaʻa ʻana o ia mau hale kūloko ma o ka subtractive machining. I nā makahiki i hala iho nei, ʻenehana paʻi 3D, ...