work-harden
/ˈwɜːkˌhɑːdən/verb
with obj.［often as noun workhardening］
- Metallurgy toughen (a metal) as a result of cold-working【冶】使（金属）加工硬化, 冷作加工。
| 单词 | work-harden |
| 释义 | work-harden/ˈwɜːkˌhɑːdən/verb with obj.［often as noun workhardening］
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