次级卵膜的英文

• secondary egg envelope

• 次级:    secondary
• 卵:    ovum; egg; spawn
• 膜:    membrane
• 初级卵膜:    primary egg envelope
• 三级卵膜:    tertiary egg envelope

例句与用法

1. 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。