电力线 [- - xiàn]①(按照电场中各点的电力强度和电力方向连成的线) electric fluxline; electric line of force ②(输送动力用电的导线) electric-power line; power line 电力线载波电话power line carrier telephone system电力线载波通信系统power-line carrier communication system电力线载波增音机power line carrier repeater