egg envelope meaning in English

卵膜

The egg envelopes are composed of secondary envelope and primary envelope which comprise zona radiatal , zona radiata2 and zona radiata3 , and there are tube radiata and flexural sub - elasticity envelope which is vertical with plasma membrane in every zona radiata
唇(鱼骨)卵膜由初级卵膜和次级卵膜组成，初级卵膜具三层辐射带，带内具弯曲的弹性亚膜和辐射管，次级卵膜胶质状，外具浓密的颗粒。
About 80s after fertilization , the angle of sub - elasticity envelope expands . 110s , sub - elasticity envelope in zona radiatal becomes parallel with plasma membrane , later , the same phenomenon happen in zona radiata2 and zona radiata3 , which result in the fertilization envelopes ( egg envelopes ) outspreading ; 140min after fertilization , the fertilization envelopes come into being
受精80s ，弹性亚膜弯曲的角度增加， 110s ，第一层辐射带的弹性亚膜拉直， 240s ，第一层和部分第二层辐射带弹性亚膜倾斜，第三层辐射带弹性亚膜拉直，受精膜(卵膜)开始外举， 140min受精膜完全举起。