The wind, or fire meet tree-trunk enwinds climbing plants and have lowered down the branches of the tree and fire up to become crown fire.
当地面火遇到大风时，或树干上缠绕着爬蔓植物和有低垂下来的树枝，火便上升到树冠，成为树冠火。In the tree crown, the basal area growth of trunk sapwood is approximately equivalent to that of the upper branch sapwood.
在树冠内，树干边材断面积生长量与其上部的枝条边材断面积生长量大致相等。Now there is nothing to see beneath the crystalline sky but the uneven tops of second-growth trees.
现在，晶莹的天穹下除了高低不等的再生树冠之处，什么也看不见了。You do not know ah, I can grow to a maximum 15 meters high, 400 square meters crown cover it!
你不知道啊，我最高可以长到15米高、树冠覆盖400平方米呢！Temperate-forest fires burn hot and fast, and sometimes all the way up to the crown of a tree.
温带林地火灾火焰干烈、蔓延迅速，有时会一直沿着树干烧至树冠。Flying buttresses, just as in a cathedral, help strengthen the crown of the tree and help the tree exist longer through time.
这些飞拱，正如在一座大教堂里一样，强化了树冠也让这些树活得更久。The saving irrigation about water storage in single pit is dug on the surface of the fruit tree canopy projection outer diameter .
该灌水方法是在环果树树冠投影外围挖若干个蓄水坑进行灌溉果树的方法。Maric could barely make out the great oak behind him, thrusting up into the overhead canopy like a gravestone.
Maric勉强能认出身后的橡树，高耸进入头顶的树冠中，就像墓碑一样。Rough-shaped trunk, dense crown, fire red, like the leaves . . . on as a quiet, unique side valley.
粗状的树干，茂密的树冠，火一样红的叶子……就那样安静的、独一无二的站在山谷里。