重結(jié)晶； 再結(jié)晶
At high temperature, the material at the closed pore quickly completes the recrystallisation, but is needs a long time to weld the pore closure for atom diffusion. 高溫下的空洞閉合后能夠立即完成再結(jié)晶過程，但空洞焊合需要一定的保溫時(shí)間。
