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[期刊论文] 作者：Liang Hu,Xiang-Ming Hu,Qing-Ping Hu,
来源：中国物理B（英文版） 年份：2021
For a three-level atom,two nondegenerate (even microwave and optical) electric dipole transitions are usually al-lowed;for either of these,the fluorescence spec...
Effects of Environmental Factors on Tree Seedling Regeneration in a Pine-oak Mixed Forest in the Qin
[期刊论文] 作者：YU Fei,WANG De-xiang,SHI Xiao-xiao,YI Xian-feng,HUANG Qing-ping,HU You-ning,,
来源：Journal of Mountain Science 年份：2013
Natural seedling regeneration and tree establishment are affected by various environmental factors.In this study,we established eight,eight,six,and four indepen...
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