【医】 卵膜

南方鲇卵巢滤泡细胞和卵膜生成的超微结构研究

hatchability of fertile egg

egg

lay an egg

hens' egg

coffee shot-hole borer【植保】;Dryocoetes coffeae Egg【植保】

Fertilized egg

resting egg

soft-shelled egg【禽】