施打在自愿者身上的热强度有两种.There were two levels of heat intensity given to the volunteers.第三个自愿者试图用电锯把牙齿锯掉.The third volunteer tried sawing them off with the electric saw.热脉冲施打在自愿者的手臂上.The pulses the arms of the volunteers....

“自愿者”的英语可以翻译为：volunteer ...