ageing
process
slow the ageing process減緩衰老過程
rapid ageing process快速老化過程
step ageing process分級(jí)時(shí)效工藝
Slow down ageing process延緩衰老的步伐
interrupted multi-step ageing process多級(jí)斷續(xù)時(shí)效工藝
The process of ageing衰老過程
ageing hardening process時(shí)效硬化進(jìn)程