The forms and structures of gill pouch in five Lampetra japonicas were observed in detail.

本文对五条日本七鳃鳗腮囊的形态结构进行了比较详细的观察。

youdao

Lampetra japonica could migrate to the Yellow Sea region and freshwater in Jiangsu Province.

日本七鳃鳗可以迁移到黄海及江苏省淡水中。

youdao

The results indicate that there are seven pairs of gill pouches in Lampetra japonica (Martens). The wall of gill pouch folding inward forms gill-lobes and secondary gill lobe.

其结果表明：日本七鳃鳗的腮囊有七对，囊壁向内折叠形成腮叶及次级腮叶。

youdao

But Lampetra's unique propulsion system could also have useful applications, as it has proved an efficient way to move a machine through water.

ECONOMIST: Robots

Dr Dario and Dr Stefanini have built him a device called Lampetra (pictured top), which is made of circular segments modelled on the lamprey's cartilaginous vertebrae.

ECONOMIST: Robots

Lampetra has eyes, in the form of small cameras, and can use information about colours and shapes that these cameras gather in order to get around obstacles.

ECONOMIST: Robots