龟，俗称乌龟，泛指龟鳖目的所有成员，是现存最古老的爬行动物。

Turtle, commonly known as the tortoise, referring to turtle turtle purpose all members, is the oldest reptiles.

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随着养殖规模的扩大，龟鳖动物的疾病日益增多，许多养殖场遭受了巨大的经济损失。

With the enlargement of the cultivation scale, the kinds of turtle's disease become more and more, which results in lots of economic losses.

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中华鳖的血液循环系统反映了龟鳖类爬行动物的主要特点，与其它龟类比较，略有差异。

The blood circulatory system of the chinese soft shelled turtle is much similar to other turtles, with but a few unique characteristics.

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