xylology involves the study of the physical properties and classification of wood.

木材學涉及木材的物理性質和分類研究。

he is conducting research in xylology to improve wood preservation techniques.

他正在進行木材學研究，以改善木材保存技術。

Xylology — the branch of dendrology about the gross and minute structure of wood. It is composed of "xylo-"(derived from the Greek 'xylon'= "wood") and "-logy", meaning "science of", "study of".