常見例句雙語例句The changes of surface coating, basic structures and mechanical proper-tie? in first stage turbine blade of GH220 alloy tested by engine rig for 236 hour? has been investigated.研究了國產(chǎn)GH220合金渦輪葉片經(jīng)236小時(shí)臺(tái)架試車后的表面滲層、基體組織與合金性能的變化。 返回 surface tie-in