ganoid

ganoid

1. Its body is covered in an armor plating of diamond-shaped, enamel-coated ganoid scales, and it's been said that this shining armor can produce sparks when struck by an axe.

它的身体覆盖着一层菱形釉层的硬磷,象是穿着钢盔铁甲,据说用斧子砍上去会冒火花。

2. ganoid scale

硬鳞

3. ganoine A hard calcified tissue resembling enamel but in many layers; found only in ganoid fishes.

硬鳞质一个坚硬的钙化组织与珐琅相似但是有许多层;只发现在硬鳞鱼中。

4. ganoid fish

硬鳞鱼

5. Ganoid fishes swarmed during the earlier geological periods.

硬鳞鱼在更早的地质时期数量巨大。

6. Any of several ganoid fishes of the family Lepisosteidae of fresh and brackish waters of North and Central America, having long narrow jaws, an elongated body, and a long snout.

雀鳝一种生长在北美洲和中美洲淡水或咸水中的雀鳝科硬鳞鱼,具有狭长的颚、伸长的身体和长鼻口部

7. Primitive ray-finned freshwater fishes of North and Central America and Cuba. Characterized by elongated jaws and heavy ganoid scales.

雀鳝原始的条鳍淡水鱼,分布在中美洲与北美洲及古巴。特徵为瘦长的颚与重的硬鳞。

8. Any of several ganoid fishes of the family Lepisosteidae of fresh and brackish waters of North and Central America,having long narrow jaws,an elongated body,and a long snout.

雀鳝,一种生长在北美洲和中美洲淡水或咸水中的雀鳝科硬鳞鱼,具有狭长的颚、伸长的身体和长鼻口部。

9. Sturgeons and gars are ganoid.

鲟鱼和长嘴鱼都是硬鳞鱼。

10. Any of various large, ganoid freshwater and marine fishes of the family Acipenseridae of the Northern Hemisphere, having edible flesh and valued as a source of caviar and isinglass.

鲟鱼:一种北半球产的,有巨大的硬鳞的淡水鱼或海洋鱼,其肉可食,是鱼子酱及鱼胶的宝贵来源

11. dentine A hard mesodermal material in teeth and some scales (cosmoid, ganoid and placoid scales) produced by odontobasts.

齿质组成牙齿或某些鳞片(硬鳞与盾鳞)中层的坚硬物质。

英语宝典
考试词汇表