骨干枝 meaning in English

skeleton branch

Treating each tree as a separate scaffold of a very low-headed tree .
将每棵树作为一个树冠很矮的骨干枝来处理。
Frequently insufficient feathers are available for the development of the framework branches .
常常有这样的情况，即用来培养骨干枝的分枝数量不够。
The second was from the end of june to the beginning of july
第2次发生高峰过后，逐渐变为越冬态而转移到骨干枝裂隙处。