whalebone造句怎么写

Any of several whales of the family Balaenidae, characterized by a large head, whalebone plates in the mouth, and absence of a dorsal fin.

Ivory, tortoise-shell, whalebone and whale- bone hair, horns, antlers, hooves, nails, claws and beaks, unworked or simply pre- pared but not cut to shape;

Class20 Furniture, mirrors, picture frames; goods( not included in other classes) of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of-pearl, meerschaum and substitutes for all these materials, or of plastics.