One whose thoughts and feelings are directed toward oneself. 性格内向的人思想和感情都指向自我的人
A faint glow enveloping the high-field electrode in a corona discharge, often accompanied by streamers directed toward the low-field electrode. 电晕在电晕放电中在高压电极出现的一种微弱光辉,常伴随有朝向低压电极的电流