人生如同一丝游云，一片落叶；云与天宇的相栖是暂短的，叶与树相依是匆匆的。
Life is like a trace of roaming cloud, and also like a piece of fallen leaf; cloud perched with sky is transient and leaf depended on tree is in a rush.
现有的分类预测的方法有许多种，常见的有决策树算法(C4.5)、贝叶斯分类算法、BP算法与支持向量机等。
There are many classification methods to forecast such as decision tree algorithm (C4.5), Bayes algorithm, BP algorithm and SVM.
群落的树冠分布图树冠深度为树高与叶下高的差值。
Crown distribution diagram of the community. The crown depths were the difference between tree height and height of lowest leaves.
群落的树冠分布图树冠深度为树高与叶下高的差值。
Crown distribution diagram of the community. The crown depths were the difference between tree height and height of lowest leaves.
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