hearing loop
noun/ˈhɪərɪŋ luːp/
/ˈhɪrɪŋ luːp/
(also induction loop)
- a system in theatres, etc., that helps people who cannot hear well. A ring of wire around the room produces a signal that can be received directly by hearing aids.
听力循环：剧院等系统，可以帮助听不清的人使用。房间周围的一圈电线会产生信号，助听器可以直接接收该信号。