Zhè zhǒng shù de pícéng hányǒu zhēnguì de yàoyòng chéngfèn.
The bark layer of this tree contains precious medicinal compounds.
Tips
usage
皮层 covers both botanical bark layers and the anatomical cortex. In neuroscience, 大脑皮层 (dànǎo pícéng — cerebral cortex) is the most common compound. 皮质 (pízhì) is an alternative term for cortex in some contexts.
