“中国历史时期运河”的概念、定义、翻译、参考文献-科学参考

单词	中国历史时期运河
释义	中国历史时期运河 Encyclopedia 理学中国历史上的运河释 Chinese historical Canals中国历史时期运河中国历史时期人工开凿的通航水道，至晚于春秋战国时期已经开始修凿运河，后世兴修的京杭大运河，迄今仍是世界上最长的运河。
随便看	hazardous chemicals and logistics management hazardous chemicals emergency recovery hazardous chemicals explosion hazardous chemicals leakage hazardous chemicals liable to produce explosives hazardous chemicals pollution prevention and control law hazardous chemicals production hazardous chemicals production plant wireless network hazardous chemicals registration hazardous chemicals safety hazardous chemicals scrap hazardous chemicals storage hazardous chemicals that can be used to produce explosives hazardous chemicals transportation hazardous gas detection hazardous gas monitoring for mine hazardous geological map hazardous machine function hazardous materials hazardous network operation hazardous pollutant/chemical monitoring hazardous substance hazardous waste landfill hazardous waste treatment hazardous weather warning

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。