“门座起重机”的概念、定义、翻译、参考文献-科学参考

单词	门座起重机
释义	门座起重机 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	observational network observational predicate calculus observational program observational project observational quantity observational sampling observational selection observation and description on external things observation and imitation of character observation control system observation equation observation error observation function observation likelihoods observation measurements observation method observation network at seabed observation of agrometeorological disasters observation of crop developmental stages observation of crop growth observation of developmental stages of grass observation of developmental stages of trees observation of ground pressure observation of livestock growth and development observation of navigation obstruction

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。