Examples of using "проникать" in a sentence and their english translations:
Helium is capable of penetrating glass.
that could penetrate even the toughest barriers:
as information can penetrate even the toughest borders.
Run from arrogance, do not allow it to seep into your mind or into your speech.
Throat and nose membranes hurt by dry air allow cold viruses to enter more easily. It is important to carry out sensible counter plans against the cold with heaters and against the dryness with humidifiers.