GOOGLE英文翻译:Lamellibranchiata basic structure of the gill flap. Each of the gill flap from two sheets of the gill flap, known within the gill flap and the outer gill flap. Each gill flap and again by a dorsal longitudinal direction of many of the gill wire through the wire connection between the contact is made between the contact wire on the gills of small holes called pores. gill flap before the back-end and the ventral three healing, surrounded inside the gill cavity, said cavity, there are many vertical cavity mediastinal connections inside the gill flap and the outer gill flap, gill cavity on the back-pass gill cavity. gill surface with cilia, which are blood vessels and support the use of the keratin rod. water flows into the jacket cavity, the small hole into the gill cavity through the gill to the to the gills on the back of the chamber, back flow through the outlet pipe body.