地黄叶粉末制片，可观察到腺毛、非腺毛（2～6个细胞不等）及螺纹导管；
The leaf powder movie-making, may observe the glandular hair, the non-glandular hair(2~6 cells)and the spiral vessel;
导管与纤维管胞均具明显的螺纹加厚。
Vessel and fibre - tracheid are both spiral thickening distinctly.
导管与纤维管胞均具明显的螺纹加厚。
Vessel and fibre - tracheid are both spiral thickening distinctly.
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