playing window（走带窗口）是什么意思？音标发音+图解场景

走带窗口 /ˈpleɪɪŋ ˈwɪndəʊ/ n

English: playing window · 走带窗口

释义：Opening allowing the recording tape to advance in front of the playback head of the cassette tape deck.

这个词出现在以下图解场景（1）