“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	Green Ship green small hydropower station Green Snake green solvent Green space green space area green space area per capita green space attached to residential public facilities green space attached to residential road green space attached to road, street and transportation greening green space design green space ecological networks green space near the residential house green space planning of Beijing green space ratio of city green space system planning of Chongqing green space system planning of Jinan green space system planning of Shanghai Greens Party of Australia green speed green spill greenstone belt green storm water infrastructure Green strain green subsidy

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