树冠的英文：
crown of a tree

Measure light intensity above and under the mangrove canopy by using the light meter.
用光照度计量度树冠上和树冠下的平均光照度。

The tops of the trees rippled in the breeze.
树冠在微风中婆娑摇曳。

pruning, by removing part of the top, alters this ratio
修剪通过剪除部分树冠而改变根冠比。

"Mangroves which touch, overlie or underlie the transect line are all included in your study."
研究对象是所有树冠垂直投影能与样条重叠的树木。

One factor within the crown of monoecious species is the proximity of male and female flowers
雌雄同株树种的树冠内的一个因素，就是雄花和雌花很接近。

The labeling substance is unevenly distributed through the crown of the marked trees
标记物质不能均匀地分布于标记树的整个树冠上。

No cross, no crown.
没有磨难，就没有皇冠。

The crown was beset with diamonds and jewels.
皇冠上镶嵌着钻石和珠宝。

The crown is an attribute of kingship.
王冠是王位的象征。

Credit keeps the crown of the causeway.
守信誉的人不怕走在大街中央。

The trees are sparse.
树木稀疏。

The trees are in blossom .
树上鲜花盛开。

the parent tree
母树

Such a tree may be at odds with a scientific tree.
这种树，可能与科学上的树有区别。

Deciduous trees: Hardwood trees which shed their leaves.
落苣树:年落苣的硬木树。