“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	ground roll ground rolling dragon ground rope ground row ground-satellite communication ground screen ground search & rescue groundsel ground set ground sharks ground shock ground sloth ground source heat pump ground source heat pump air-conditioner ground source heat pump heating ground spectrometer ground state ground state degeneracy polymer semiconductor ground-state depletion effect ground state depletion microscope ground state energy ground state of atom ground state rotational band ground state spontaneous fission ground-state spontaneous fission

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。