cao thế 
high voltage, high tension [ cao ] : (1) tall, high; to be ~ tall, active; to excel; lofty, noble; (2) ointment
[ thế ] : (1) manner, way, fashion, position, situation, posture; (2) so, thus, like that, such
Most Common Compounds Set 1:
Most Common Compounds Set 2 :
điện cao thế high voltage, high tension đường dây điện cao thế high voltage lines