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Terms for subject Construction containing heavy duty | all forms | in specified order only
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continuous heavy-duty service连续重负载运行
heavy-duty rectifier强力〔大功率〕整流管
heavy-duty rectifier强〔大〕功率整流器
The ballast cleaner is applicable for medium- and heavy-duty ballast cleaning operation of railway track bed道砟清筛机应用于铁路轨道路基的中、重型道砟清理作业