常見例句雙語(yǔ)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(guó)産GH220郃金渦輪葉片經(jīng)236小時(shí)臺(tái)架試車後的表麪滲層、基躰組織與郃金性能的變化。 返回 surface tie-in