flatworms

flatworms such as these are just one of the 33, 000 known species in japanese waters.

像这样的扁虫只是日本水域中33000已知的物种之一。

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schistosomiasis (or bilharziasis): group of chronic disorders caused by parasitic flatworms of the genus schistosoma (blood flukes).

血吸虫病：由血吸虫属寄生的扁虫引起的慢性疾病。

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flatworms parasitic in the blood vessels of mammals.

寄生在哺乳动物血管中的扁虫。

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Group of chronic disorders caused by parasitic flatworms of the genus Schistosoma blood flukes.

由血吸虫属寄生的扁虫引起的慢性疾病.

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This is the group of flatworms that cause schistosomiasis.

这是导致血吸虫病的扁形虫族群.

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Schistosomiasis ( or bilharziasis ): Group of chronic disorders caused by parasitic flatworms of the genus Schistosoma ( blood flukes ) .

血吸虫 病: 由 血吸虫 属寄生的扁虫引起的慢性疾病.

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parasitic flatworms having external suckers for attaching to a host.

寄生的扁虫，有用于吸附宿主的外生吸管。

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the flatworms have flattened bodies and look more like chewing gum as they forage for food on the rocks.

当他们在岩石上为食喂的时候，扁形虫已经将身体变平而且看起来更像口胶。

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all right, guys, today we are gonna be observing the behavior of planaria , aka flatworms. so what we're gonna do. . . regenerate .

好了，同学们，今天我们要研究涡虫的特性，又叫扁虫，我们要做的是…观察它们再生。

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ribbon-like flatworms that are parasitic in the intestines of humans and other vertebrates.

寄生在人类和其它脊椎动物肠中的带状扁虫。

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schistosomiasis, or bilharzia, is a parasitic disease caused by trematode flatworms of the genus schistosoma.

血吸虫病（又称裂体吸虫病）是由裂体吸虫属血吸虫引起的一种寄生虫病。

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protonephridia are present in many flatworms and are involved in osmoregulation. a primitive brain and nerve cords are present.

原肾管存在于许多扁形动物，并涉及渗透调节。原始的大脑和神经索存在。

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hippo males fling their faeces; flatworms have penis-jousting contests; and humpback whales sing and leap above the ocean surface.

雄性河马会甩它们的粪便，扁虫用阴茎比武，座头鲸则唱歌并跃出水面。

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