A gut is absent, and the reproductive system is repeated in each proglottid.
肠道缺乏, 生殖系统在每个节片内重复。

Isolation and biological activity of proglobeflowery acid from trollius chinensis bunge
长瓣金莲花中原金莲酸的分离和生物活性

By the improved method, proglumide was synthesized in acetic anhydride with toluene as the dehydrating agent.
本文报道合成抗溃疡药丙谷胺的改进工艺。

Study on higher arithmatic proglession in the period from Song Dynasty to Yuan Dynasty
宋元时期的高阶等差级数研究

Morphology of the scoleces and gravid proglottids was observed under microscope.
方法肉眼观察虫体，镜下观察头节和孕节形态。