“natural radiation level”的概念、定义、翻译、参考文献-科学参考

单词	natural radiation level
释义	natural radiation level Encyclopedia 工学天然辐射水平释 natural radiation level天然辐射水平自然存在于地球上的放射性同位素放射和宇宙照射所产生的射线强度。工学人工辐射照射水平释 natural radiation level人工辐射照射水平人类的实践活动引起的人类辐射照射大小及其分布。
随便看	closed normal form closed n-sphere closed object closed oil gathering process closed-open set closed operator closed orbit closed orthogonal sequence closed orthogonal system closed orthonormal system closed path closed path Green's function closed path; loop closed path space closed pipe closed plane closed pneumothorax closed point closed point set Closed Population closed power station closed professional sports league closed pseudo-manifold closed quadrature formula closed quantum system

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。