bì​lù​diàn​shì

closed-circuit television

闭路电视 閉路電視 bì​lù​diàn​shì
closed-circuit television noun
A television system that transmits signals via cable to a specific set of screens within a limited area, rather than broadcasting wirelessly to the public.

Frequency

Movie subtitles
1.91 per million appears in 1% of films
Written text
0.780 per million

Sources