House Targaryen is a former Great House of Westeros and was the ruling royal House of the Seven Kingdoms for three centuries, before it was deposed during Robert's Rebellion and House Baratheon replaced it as the new royal House. The few surviving Targaryens fled into exile.
PCD Explained. PCD stands for Pitch Circle Diameter. Also Known as Bolt Circle Diameter (BCD). The Bolt Circle Diameter (BCD) (or Pitch Circle Diameter - PCD) is the diameter of the circle that passes by the center of the bolts. This is very easily measured on wheels with even number of bolts by measuring the distance between the center of two opposite bolts in mm.
SSD were a straight edge hardcore band from Boston. They released two records as SS Decontrol and then formally changed their name to SSD. As SSD they released two more records, these with a very heavy metal influenced sound. However the group is often simply referred to, including all its periods, as SSD.