爬行动物

Any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs.

中生代的几种水生爬行动物，身体象海豚，有背鳍和尾鳍，四肢形如浆。

It may be that he swept back into the past, and fell among the blood-drinking, hairy savages of the Age of Unpolished Stone; into the abysses of the Cretaceous Sea; or among the grotesque saurians, the huge reptilian brutes of the Jurassic times.

他可能已飞进过去，掉到了旧石器时代茹毛饮血、满身长毛的野蛮人中间；掉进了白垩纪海的深渊；或者掉到了保罗纪奇形怪状的蝴锡这种巨大的爬行动物中间。

Solitary roosters shelter in dense vegetation or enter a cavity – horned larks dig holes in the ground and ptarm igan burrow into snow banks – but the effect of sheltering is m agnified by several birds huddling together in the roots, as w rens, sw ifts, brow n creepers, bluebirds, and anis do.

孤独的雄鸡躲避在茂盛的植被下或进入洞穴躲藏，如角状的百灵在地面挖洞躲藏和松鸡在雪岸挖洞躲藏，但是象鹪鹩、雨燕、褐色的爬行动物、蓝知更鸟和anis所做的一样，由于多只鸟一起拥挤在根茎下，所以躲避的效果被扩大。

A pigment cell that contains melanin , especially as found in the skin of amphibians and reptiles.

黑素细胞含有黑色素的色素细胞，尤指两栖动物或者爬行动物皮肤中的黑色素细胞

A pigment cell that conta in s melan in ,especially as found in the sk in of amphibians and reptiles.

黑素细胞含有黑色素的色素细胞，尤指两栖动物或者爬行动物皮肤中的黑色素细胞

The detection system, which consists of cavities located on each side of the head called "pit organs," operates on a principle similar to that of a pinhole camera , explain scientists Andreas Sichert, Paul Friedel and J.

据physorg网站2006年8月31日报道，有些蛇类具有红外视觉，也叫做&热感视觉&，可谓是蛇的第6感，也是进化赐给这些冷血爬行动物的特殊礼物。

Perhaps the least controversial assertion about the pterosaurs is that they were reptiles.

或许关于翼龙最没有争议的断言是它们都是爬行动物。

Perhaps the least controversial assertion about the pterosaurs is that they were reptiles.

可能，最少引起争论的意见就是翼龙是爬行动物。

Since pliosaurs were reptiles, which have slow metabolisms, they probably had long breaks between meals, he said.

既然上龙是爬行动物，具有较低的新陈代谢，它们很有可能在每次进食后会休息很长一段时间。他说。

Sometimes they have been overwhelmed by Tigers or Phytons because of their curious behaviour and because of their poor eye sight they get too close for comfort.

有时，牠们因为牠们好奇的行为以及因为牠们可怜的视力靠得太近而受到老虎或者爬行动物的打击。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。