“medium wave propagation”的概念、定义、翻译、参考文献-科学参考

单词	medium wave propagation
释义	medium wave propagation Encyclopedia 工学电离层电波传播释 medium wave propagation中波传播波长从1000米到100米或频率从300千赫到3兆赫的无线电波的传播。
随便看	negative channel metal-oxide-semiconductor circuit negative channel metal-oxide-semiconductor integrated circuit negative charge negative complex negative compressibility effect negative conductance amplifier negative control negative correlation negative crystal negative curvature negative curvature direction negative curvature manifold negative cycle negative definite negative definite form negative definite function negative definite kernel negative definite matrix negative definiteness negative definite operator negative definite quadratic form negative deviation Negative Dialectics negative difference between purchasing and marketing prices negative differential conductivity

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。