考虑到光纤出射光束的发散，在有效反射率中引入了损耗因子，讨论了它的基本工作原理。
Its principle is discussed, taking the divergent optical beam emitted from the fiber into consideration, which causes a loss factor for the effective reflectance.
功率密度的二阶矩方法可用于截断光束，并克服了光束质量因子的发散困难。
It is also shown that the second-order moment method of the power density is applicable to the truncated beams and overcomes the divergence difficulty of the beam quality factor.
通过分析这些数据可以获得有关光束的一些参数，如光斑尺寸、相对光功率、相对峰值功率、发散角、M2因子等等。
Finally by analyzing these data we can obtain the parameters about the laser beam such as: beam size, relative beam power, relative peak power, divergence Angle, M2 factor and so on.
探讨泥岩地区盆栽植物之微气候影响因素，并以蒸发散量模式量化这些因子。
The influence factor of microclimate for potted plant at mudstone area is discussed.
探讨泥岩地区盆栽植物之微气候影响因素，并以蒸发散量模式量化这些因子。
The influence factor of microclimate for potted plant at mudstone area is discussed.
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