di.ode
n.(名词)An electronic device that restricts current flow chiefly to one direction.二极管:将电流主要限制于一个方向的电子设备An electron tube having a cathode and an anode.电子二极管:有一个阳极和一个阴极的电子管A two-terminal semiconductor device used chiefly as a rectifier.半导体二极管:主要作为整流器使用的一个有两端的半导体设备