“economical haul distance”的概念、定义、翻译、参考文献-科学参考

单词	economical haul distance
释义	economical haul distance Encyclopedia 经济学经济运距释 economical haul distance经济运距某种运输方式运送旅客货物所能产生最佳经济效益的范围。是在各种运输方式之间比较而测算出来的具有一定变化范围和幅度的数值，即在不同的交通运输网布局、客货源状况、运输装备技术经济特性等运输条件下，各种运输方式的经济运距将产生一定的变化。
随便看	source coding technology source coding theorem source coding theory source coding with side information source contribution ratio source control source control facilities source control of pollutants source control system by sponge city facilities source control technology of farmland non-point source pollution source control theory of petroleum accumulation source core source count source counting source country effect source criticism source database source data storage source density source diagram source directivity factor source domain source-drain characteristics source/drain on insulator device structure source/drain on nothing device structure

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。