“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	banner land bannermen's school Banner system banning repetitive suits Bannu ban on publishing in the Song Dynasty (960-1279) ban on the play Sai Jinhua ban on Zhu Xi's theory and his followers during the Qingyuan era Banoo main teridulhann Banpo Banpo Site Banqiang style Banqiao Reservoir Banqinga Archaeological remains Banquan Shi banque and shot melody Banquet at Hongmen banquet music banquet poems banquet song-dance Banshan Bansho Shirabesho Banská-Bystrica bansuri Bansya Case

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