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1·Stand density had a weak impact on height, crown height, crown width, diameter and length of upper branches;

密度对上层木的树高、冠长、冠幅、树冠上层枝直径和枝长等的影响比较小；

2·The crown diameter-crown height correlation equations and the formulas of three-dimensional vegetation quantity of tree crown are established.

建立常见绿化树种“冠径—冠高”相关方程和树冠绿化三维量计算公式。

3·The gross flowers and height, diameter, crown width, crown height, crown surface of Chinese fir clones in Guangxi area were investigated by genetic correlation analysis and path-coefficient analysis.

对广西杉木无性系的总花量与树高、胸径、冠幅、冠高、树冠表面积进行了遗传相关及通径分析分析表明：总花量与生长性状之间的遗传相关系数均为负值；

4·Crown: Medium or low height, avoid crowns that are full or too high.

帽顶：中等高度或偏低，不要选那种又圆又高的帽子。

5·Crown: Medium height, and not pinched too tightly at the front.

帽顶：中等高度，前部不是收缩的很厉害。

6·Crown: Shorter height. Avoid crowns that are square, full, or too high.

帽顶：高度上要低一点。不要那种方形，圆形或很高的帽子。

7·By using observation data over 50 years, the paper systematically analyzed the relations of different stand density with diameter, height, crown of trees and so on.

利用近50年的系统定位观测资料，分析红松果材兼用林不同林分密度与直径、树高、冠幅等主要测树因子的关系。

8·It can measure the height, diameter and crown of trees at the same time.

该方法可以同时对树木的树高、树径、树冠进行测量。

9·Crown: Medium to short height, pinched toward the front. Avoid crowns that are full or too high.

帽顶：中等偏低的高度，向前收缩，不要帽顶圆又高的。

10·With aid of the height of building, I could view the tree crown of willows.

借助于楼房的高度，我可以望见柳树的冠顶。