“高频返回散射”的概念、定义、翻译、参考文献-科学参考

单词	高频返回散射
释义	高频返回散射 Encyclopedia 工学短波传播释 high-frequency backscattering高频返回散射斜向入射到电离层的高频段（3～30兆赫）无线电波，经电离层反射（可能多次）后因地面地形不平坦和电气不均匀性而向四面八方散射的现象。其中一小部分电波能量沿相反方向（路径可与以前相同或不同），由电离层反射折回到地面电波发射点。
随便看	health effects of environmental pollution on children health effects of environmental pollution on elderly people health effects of environmental pollution on occupational health effects of environmental pollution on pregnant woman health effects of environmental pollution on susceptible population health effects of fluorine health effects of food agricultural chemicals residues health effects of food contamination health effects of food contamination by organophosphates pesticide health effects of food contamination by poisonous heavy metals health effects of food contamination by polychlorinated biphenyls health effects of formaldehyde pollution health effects of high altitude environment health effects of high temperature environment health effects of hydrogen sulfide health effects of indoor microclimate health effects of laser health effects of lead pollution health effects of legionella pollution health effects of light pollution health effects of mercury health effects of mold pollution health effects of mould pollution health effects of nitrogen oxides pollution health effects of noise

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。