硬化区 meaning in English
area of hardening
hard zone
hardened zone
Examples
- Moreover , laser overlapping treatment is another actual problem in many places . by a lot of experiments , as be showed in many theses , we find the hardness of mould steels were lowered because of tempering
并且，激光交叠热处理是在生产中可能发生的问题，我们通过大量的实验发现在激光硬化区由于一定程度的回火效应而产生硬度回落现象。