stile tongue of sash（窗梃舌）是什么意思？音标发音+图解场景

窗梃舌 /ˈstaɪl ˈtʌŋ ɒv ˈsaʃ/ n

English: stile tongue of sash · 窗梃舌

释义：Vertical part of the frame with a rounded side that fits into the stile groove of the sash.

这个词出现在以下图解场景（1）