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组织与性能。
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、活力依然汤米和塔珀丝!
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