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关注:1
2013-05-23 12:21
求翻译:steels never should be the same. The rubbing steels should be dissimilar in type ( i.e. H-13 against S-7 , and follow the guideline above),是什么意思?![]() ![]() steels never should be the same. The rubbing steels should be dissimilar in type ( i.e. H-13 against S-7 , and follow the guideline above),
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