It has specifically described 22 kinds of import broad-leaved timber structure and identification characteristic through sampling and cut-section observation of import broad-leaved timber.
通过对进口阔叶木材取样与切片观测，对22种进口阔叶材的木材构造与识别特征进行了具体描述。
Their studies cover tree identification, timber measurement and harvesting, equipment operation, and more.
课程包括树木识别，木材测量和采伐，设备操作等。
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