For porous surfaces like paper or walls, fingerprints are detected by spraying a solution called ninhydrin on the surface where a print may be found.

对于像纸或墙这样的多孔表面，通过在可能发现指纹的表面喷洒一种叫做茚三酮的溶液来检测指纹。

With a porous surface, like a piece of paper, the silicone polymers won't be able to form a barrier, and the dry erase ink will seep in, just like any other marker.

而在多孔的表面，如一张纸，硅酮聚合物将无法形成屏障，于是白板笔的墨水就会渗入其内，与其他记号笔没有什么区别。

With a porous surface, like a piece of paper, the silicone polymers won’t be able to form a barrier, and the dry erase ink will seep in, like any other marker.

对于多孔表面，如一张纸，有机硅聚合物无法形成屏障， 干擦墨水会渗入， 就像任何其他记号笔一样。