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本文将介绍一种新型手用锯条——双层辉光离子渗金属手用锯条。
A new hacksaw blade, double glow plasma surface alloying hand hacksaw blade, is introduced in the paper.
youdao
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本文将介绍一种新型手用锯条——双层辉光离子渗金属手用锯条。
A new hacksaw blade, double glow plasma surface alloying hand hacksaw blade, is introduced in the paper.
youdao