六鳃鲨们，就像生活在温哥华海岸附近的这一条，白天漫游于海底，有时可潜至海面下8200英尺（2500米）处，夜间则游向海面觅食。
Six-gill sharks, like this one off the coast of Vancouver, cruise the ocean floor during the day, sometimes as deep as 8, 200 feet (2, 500 meters), then move toward the surface at night to feed.
在高盐胁迫下，许氏平细鳃中氯细胞的微细小管系统发达、密集，线粒体数量增多，与相邻细胞的间隙较大。
Under the high salinity stress, tubule system in the chloride cell in the fish gill is developed, the number of mitochondria is increased and cell clearance is enhanced.
鳃丝角质层下的上皮细胞层比较薄，其近角质层侧细胞膜具有微绒毛。
In the filaments, the epithelium is a thin sheet, with a series of microvilli beneath the cuticle.
应用推荐