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单词
pm high speed steel
释义
pm high speed steel
网络
粉末高速钢
网络释义
1.
粉末高速钢
我要将
粉末高速钢
(
PM High Speed Steel
)材质加热至 300度C。请问有甚麽方法能保持原来的金属色泽,不会加热后就呈现烧黑 …
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例句
释义:
粉末高速钢
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更新时间:2026/6/5 3:07:56