| 释义 |
闭路电视bìlùdiànshì图像信号只在有限的区域内通过电缆传送的电视系统。多应用于工业、教育、医学、科学研究等方面。{closed-circuit television; television system whose image is transmitted through electric cable within a limited region only, usu. applied in industry, education, medical science and scientific studies} |