... elementary ring structure 简单环形构造 elements of light variation 光变要素 elevated pole 上天极 ...
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In old-forest stands, the test trees had higher feedback values to the landscape elements such as arrangement of trees, light perception, and variation of tree size.
受测者对景区内古树群落树木排列、光感、树木大小变异等景观要素反应值较高；
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