shell bottom造句

例句与造句

1. In the ground, mark the circumference of the pond shell bottom and, if the shape of the pond shell angles out, the circumference of its top.
2. The plastron ( shell bottom ) is thick around the edges, and the gulars ( front pair of palstron scutes ) do not project past the carapace.
3. Born out of the states 1997 Fisheries Reform Act, which directed officials to work toward the protection and enhancement of coastal fish habitats, the plan covers six habitat types water column, shell bottom, submerged aquatic vegetation, wetlands, soft bottom and ocean hard bottom.
4. It's difficult to find shell bottom in a sentence. 用shell bottom造句挺难的