Cortical microtubules were observed in intraepidermal cells of onion bulb with a thin section and negative staining of protoplasts.
洋葱鳞茎表皮细胞内可见皮层微管，呈薄片状，原生质体染色阴性。
Cortical microtubules were observed in intraepidermal cells of onion bulb with thin section and negative staining of protoplasts.
用超薄切片和原生质体负染的方法，在电镜下观察到洋葱鳞茎内表皮细胞周质微管的存在。
The samples were take out for section-staining and bone scanning after 4, 8 and 12 weeks.
术后4周、8周、12周后对人工骨材料进行切片染色、骨扫描等检查，观察人工骨血管化及骨代谢情况。
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