“D region”的概念、定义、翻译、参考文献-科学参考

单词	D region
释义	D region Encyclopedia 理学D层释 D regionD层电离层的底部，电离度较低（包括多种原子离子团）的大气所构成的一层，位于60～90千米的区域。
随便看	Value the Virtuous Personage value variable value weighted rate of return value with sign value zero valuing legality and disvaluing morality valuing self and weighting life valuing stumpag valvae valval valvar valvate valve valve and meter valve arrester valve dosimeter valve for pumping station valve mechanism valve mechanism without camshaft valve of the rectifier valve opening valve positioner valve regulated lead acid battery valve regulated lead-acid battery valve repair

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。