It is indicated that chimozine is relative to the forming of peritrophic membrane (PMb) and the den-sity of PMb determined whether Nosema Apis Zander can inject in the ventriculus epithelium.

蜜中肠酪素酶与蜜中肠围食膜的形成有关，而围食膜的致密度又决定了蜜孢子虫能否侵入蜜中肠上皮细胞。

14 cases were transglottic carcinoma showing extension of mass across ventriculus larynges, narrowing cavity anterior to throat, and damaging cricoid cartilage and spooncartilage.

跨声门癌14例,表现为较大组织肿物跨越喉,喉前皮腔受压变窄,环状软骨、勺状软骨破坏。