Based on the observed data of strong motion acceleration in Yunnan region, the surface attenuation pattern at horizontal and vertical peak acceleration is studied by regressive analyzing method.
根据云南地区的实测强震加速度资料，采用回归分析法研究了云南地区的地面水平、垂直峰值加速度衰减规律。
The attenuation formulas both of vertical and horizontal vibrating displacements are obtained.
得到竖向和水平向振动位移衰减公式。
It studies the vertical uniformity of single mode fiber attenuation through measurement and gives its evaluation on the uniformity of present single mode fibers.
通过测试研究了单模光纤衰减的纵向均匀性，并对目前单模光纤衰减的纵向均匀性作出了评价。
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