páo luò
form of torture said to have been used by King Zhou of Shang 商紂王|商纣王[Shang1 Zhou4 Wang2] in which the victim was forced onto a bronze pillar heated by a fire
炮
páo
to prepare herbal medicine by roasting or parching (in a pan)
烙
luò
used in 炮烙[pao2 luo4]