Κύμα P: Διαφορά μεταξύ των αναθεωρήσεων

{{hatnote|This article is on the type of seismic wave. For the term used in electrocardiography, see [[P wave (electrocardfsfsfsselectrocardiography)]]. P-wave can also refer to a type of electronic wavefunction in atomic physics; see [[atomic orbital]].}}