“second moment method”的概念、定义、翻译、参考文献-科学参考

单词	second moment method
释义	second moment method Encyclopedia 工学激光参数测量方法释 second moment method二阶矩法利用激光束宽正比于光束横截面上功率密度分布的二阶中心矩这一原理定义、测量光束束宽的方法。
随便看	natural invasion Naturalis Biodiversity Centre naturalism Naturalism in drama natural isomorphism natural isotope naturalistic driving study naturalistic ethics naturalistic fallacy naturalistic observation naturalistic photography naturalistic theatre naturalist sociology naturality naturalization of aquaculture organisms naturalization of invasive species naturalized plant naturalized species natural join natural killer cell natural killer cell stimulatory factor natural killer T cell，NKT cell natural landscape natural language natural language dialogue

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。