Ultrastructure Observation of Cysticercus Pisiformis and Its Function Analysis

[ Objective] The aim of the study was to observe the ultrastructure of Cysticercus pisiformis under different state. [ Method] The Cysti- cercus pisiformis were obtained in the procedure of slaughter inspection form meat-packing plant. The Cysticercus pisiformis was taken out by cut- ting cyst directly, or cultured with physiologic saline containing 10% bile until evagination. Then it was observed and recorded by scanning electron microscopy. [ Result] Observed from top of scolex of Cysticercus pisiformis locate in cyst, the rostellum looked like an umbrella. The cutaneous muscular columns with hamula covered the front end of scolex. Viewed from the side, a row of antlers-liking hamula adhered to the scolex. Four suckers were looked like more width and body segments less time, in which there were lots of wrinkles in their surface respectively. The Cysticercus pisiformis cultured was divided obviously into scolex, neck, body segment and zone of cyst. When cutaneous muscular column of rostellum con- tracted, the antler-liking hamula extended to periphery that the ring-liking contraction appeared in neck and the lengthways contraction in body seg- ments. [ Conclusion] The Cysticercus pisiformis under different state has distinctly dissimilar ultrastructure.

一种危险化学药品自动搬运和存储小车

为使危险化学药品的存储输送过程更平稳、更准确,设计了一种新型的、多功能的危险化学药品自动搬运和存储小车。详细阐述了该小车的总体设计方案、主要机械结构设计、主要控制系统设计,讨论了运动原理以及实现的功能等。指出小车采用可升降车身、可移动抓取的机械结构,可满足一般工厂生产线的使用要求及不同规格化学药品瓶;同时,小车采用多层存储方式,使小车工作效率更高,符合当前危险化学药品生产工厂的要求。