NOT KNOWN FACTS ABOUT PCB THERMAL CYCLING FAILURE MODES

air recent, existing of air, wind - air shifting (from time to time with substantial force) from an area of high pressure to a location of low force; "trees bent beneath the fierce winds"; "when there isn't any wind, row"; "the radioactivity was being swept upwards via the air latest and out in to the ambiance"This incessant jostling is kinetic Str