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andytianya 发表于 2009-8-9 14:52:54

英国规范BS5400-10-1980-Code of Practice for Fatigue

BS5400-10-1980-Code of Practice for Fatigue

fengzhenhua 发表于 2009-12-21 23:06:03

好东西,是中文的还是英文的呀?

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