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1.Imaging studies and ureteroscopy showed a right sac-like kidney with a right lower ureteral stricture.
影像检查及输尿管镜检查显示右襄肾及右下输尿管狭窄。收藏指正
2.large order of gastropods usually breathing by means of a lung-like sac comprising most land snails and slugs and many freshwater snails.
腹足类的一个很大的目，用肺状囊呼吸，包含大部分的陆生螺蛞蝓及许多淡水螺类。收藏指正
3.Like certain other bacterial pathogens, chlamydiae induce epithelial cells—in this case, those lining genital tracts, eyelids or lungs—to absorb them within a membrane-bound sac, or vacuole.
一如某些病原菌，披衣菌会诱使上皮细胞利用由细胞膜包围而成的囊泡，将自己纳入细胞内；对披衣菌而言，主要的感染对象是生殖道、眼睑或肺脏的表皮细胞。收藏指正
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