First, it's a bit of implementation bleed-through.

首先，实现牵涉的内容较多。

youdao

Coal tar bleed-through is likely with most topcoats.

复涂以大部分面漆时，很可能发生沥青渗色。

youdao

Coal tar bleed-through is likely with most topcoats.

复涂以大部分面漆时，很可能发生沥青渗色。

youdao