In the earthworm and many other invertebrates, these excretory structures are called nephridia.

在蚯蚓和许多其它无脊椎动物中，这些排泄结构称为肾管。

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In the earthworm and many other invertebrates, these excretory structures are called nephridia.

在蚯蚓和许多其它无脊椎动物中，这些排泄结构称为肾管。

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