更多biconcave例句

1. Cartilaginous or partially calcified biconcave vertebrae are always well developed; they constrict the notochord intervertebrally.
2. Biconcave cartilaginous vertebrae are developed, and as is the case in most fishes, constrict the notochord vertebrally.
3. The vertebral centra are opisthocoelous or biconcave, and there are numerous precaudal vertebrae.
4. The vertebrae are biconcave and are very numerous; very few however belong to the tail.
5. In Labyrinthodontia the centra of the vertebrae are generally well ossified biconcave discs.