How does the heart attain its characteristic shape?

心脏是如何达到它特有的形状的呢？

youdao

The underground system is also known as the Tube, due to the characteristic shape of the subway tunnels.

地铁系统因其地铁隧道的典型形状也被称为地下管道。

youdao

Of course, you know that this is only a characteristic shape that the structure will undergo when subjected to a force that excites that mode.

当然你知道，这仅仅是结构受到一个激振力，力激起了那阶模态时所呈现出一个特征形状。

youdao

His phrases have a characteristic ripple, a shape that is always and only Perahia.

NPR: Murray Perahia: Bonding With Bach And Chopin

Dr Massey and his colleagues were able to map the matter (both dark and visible) in the bit of the firmament covered by the Cosmic Evolution Survey by looking for characteristic distortions in the shape of distant galaxies that only Hubble, which is beyond the image-blurring effects of the atmosphere, can see.

ECONOMIST: Cosmology: I spy with my little gravitational lens | The