“record of river variation”的概念、定义、翻译、参考文献-科学参考

单词	record of river variation
释义	record of river variation Encyclopedia 工学中国水利科学技术史释 record of river variation信水中国古代对河流随季节、气候推移转化，定时定点发生涨落等动态的统称。《宋史·河渠志》（1345年成书）概括为“水信有常，率以为准”。
随便看	hydraulic jet blow steerable drilling tool hydraulic jump hydraulic jump energy dissipator hydraulic lift hydraulic-lift hydraulic logical control module hydraulic loss hydraulic manipulator hydraulic material test hydraulic metal material hydraulic migration-escape effect hydraulic mining of placer hydraulic model test hydraulic motor hydraulic numerical simulation hydraulic oil hydraulic oil system hydraulic pine gate spring brake hydraulic-piston-pump completion strings hydraulic pond-digging set hydraulic potential hydraulic-powered,mechanical-operated puppet theatre hydraulic power transfer unit hydraulic power transmission hydraulic press

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。