“portal crane”的概念、定义、翻译、参考文献-科学参考

单词	portal crane
释义	portal crane Encyclopedia 工学〔轻小型起重设备〕释 portal crane门座起重机安装在沿地面轨道行走的门形底座上的全回转臂架型起重机，其门形底座下方可通行铁路车辆或其他无轨运输车辆（如汽车）等。
随便看	branch of a hyperbola branch of a mapping branch of a parabola branch of a tree Branch of Chemistry and Chemical Engineering of Forest Products, Chinese Society of Forestry branch of China Association of Higher Education Branch of Injury Prevention and Control, Chinese Preventive Medicine Association branch of mathematics Branch of Shanghai Science & Technology Museum branch place branch point branch point of a curve branch point of a morphism branch prediction branch river branch root Branch Secretariat Branch Secretariat for the Eastern Campaigns Branch Secretariat in Yanjing branch series flotation branch string connection gathering process branch surface branch target address branch target buffer branch testing

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