“river valley”的概念、定义、翻译、参考文献-科学参考

单词	river valley
释义	river valley Encyclopedia 理学河谷释 river valley河谷河水所流经的呈线状延伸的凹地。由河水侵蚀冲刷而成，由沟谷发育而来。
随便看	composite pile foundation composite plating composite polynomial composite portland cement composite probability composite process composite propellant composite proposition composite-pumped all-solid-state lasers，hybrid-pumped all-solid-state lasers composite quadrature formula composite reaction composite rectangle rule composite relation composite residue form composite resonator composite rod composite runs composite sample analysis composite sampling composites curing composite sensor composite service composite shaft lining composite silk composite silk screen

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。