This concept of being simply connected or not, and studying which loops bound surfaces or not can be used to classify shapes of things inside space.

单连通和非单连通的概念，研究哪些环路能界定曲面，可以用来对空间内部物体的形状进行分类。

youdao

He knows we defend with only one midfield player in front of two central defenders, he knows the importance of defending well the inside space.

他知道我们现在只依靠一个中场球员和两个中卫进行防守，他知道在边路防守的重要性。

youdao

The building is managed through its interior: The inside space of the oratory, which is logically the most important of the project, has given it its character and its "soul".

该建筑通过内部来管理。 内部演讲空间照理是项目最重要的部分，赋予了特色和灵魂。

youdao

But the inside space of the museum will have links to traditional Chinese architecture.

VOA: special.2009.05.06

Everything fits inside a space that's about 10cm high and 19cm in diameter.

ENGADGET

And Tracy Caldwell Dyson, who lived aboard the station for 174 days in 2010, pops up a few different times lip synching from inside a space capsule.

MSN: NASA does it 'Gangnam Style' in Johnson Space Center video

Magnificent Obsession was the first book I gave to my business partner, Dave Elkington, when together we started InsideSales.com, the leading cloud computing player in the inside sales space.

FORBES: 2 Books that Changed Everything I Know About Success: Les Miserables and Magnificent Obsession