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关注:1
2013-05-23 12:21
求翻译:The surface roughness of both the ceramic substrates was quite similar (i.e. r a = 0.2–0.35 ).是什么意思?![]() ![]() The surface roughness of both the ceramic substrates was quite similar (i.e. r a = 0.2–0.35 ).
问题补充: |
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