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铁路设施。轨道。紧固系统的试验方法。第4部分：重复荷载的影响。
Railway applications - Track - Test methods for fastening systems - Part 4: effect of repeated loading.
youdao
-
铁路设施。轨道。紧固系统的试验方法。第4部分：重复荷载的影响。
Railway applications - Track - Test methods for fastening systems - Part 4: effect of repeated loading.
youdao