The microstructure and property of the free cutting unquenched plastic die steels have been studied.
研究了易切削系非调质塑料模具钢
组织与性能。
,未冷却,未经遏制,未消除,未
The microstructure and property of the free cutting unquenched plastic die steels have been studied.
研究了易切削系非调质塑料模具钢组织与性能。
My best wishes to you all, and I hope that you will enjoy meeting Tommy and Tuppence again, years older, but with spirit unquenched!
在此我向大家致意，并
希望你们会喜欢年纪虽长、活力依然旺盛汤米和塔珀丝！
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