"冠角"是个多义词，它可以指冠角（乐器部件）,冠角（品牌）。
树干茎流的大小主要受树皮的吸水性能、树木胸径、树干枝角与冠型结构、降雨量及降雨强度的影响。
The stemflow is influenced by the water absorbing property of barks, the diameter in breast high of trees, the branch angles, the crown structure, the precipitation and the intensity of precipitation.
分析结果表明，叶冠的紧度由预扭角和工作载荷决定，离心力对紧度的变化起主要作用。
Analysis results indicate: shroud tightness is determined by pre-twist Angle of shroud and working load, the centrifugal force plays a main role to the tightness change.
一般叶角越小，冠层受光越优越。
Generally, the smaller the leaf Angle was, the better the light distributed.
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