smooth bacteria的意思|示意

A normal heart has a smooth lining, making it difficult for bacteria to stick to it.

正常心脏有平滑的内膜，使细菌很难在上面附着。

Due to its smooth non-porous structure, it is void of cracks, joints and very resistant to bacteria.

因为它光滑且无多孔结构，它没有裂缝和结头并非常抗菌。

The membrane's smooth surface is also expected to make it harder for bacteria to latch onto.

除此之外这种薄膜光滑的表面也使得细菌难以附着在上面。