left-hand rule (fleming’s rule for motors)
05Cr17Ni4Cu4Nb precipitation hardening steel
accelerator of hardening
additional cyclic hardening
age hardening
时效硬化
时效硬化处理
时效强化
经时硬化
沉淀硬化
時效硬化
经久硬化
年积硬化
age hardening of copper
Age Hardening Stainless Steel
Age Hardening Tool Alloy