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【英语翻译Thesearethelargestandmosteffectiveclassificationyardswiththelargestshuntingcapacityofseveralthousandcarsaday.Theheartoftheseyardsisthehump:atrackonahilloverwhichthecarsarepushedbytheengineafterbein】
英语翻译
Thesearethelargestandmosteffectiveclassificationyardswiththelargestshuntingcapacityofseveralthousandcarsaday.Theheartoftheseyardsisthehump:atrackonahilloverwhichthecarsarepushedbytheengineafterbeinguncoupledjustbeforeoratthetopandthentheyroll,eitherasasinglecarsorsomecopuledcarstogether,bygravityintotheirdestinationtracksintheclassificationbowl(thetrackswherethecarsaresorted)
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2020-12-22 19:39