wiper arm（雨刮臂）是什么意思？音标发音+图解场景

雨刮臂 /ˈwaɪpəɹ ˈɑːm/ n

English: wiper arm · 雨刮臂

释义：Metal rod with a to-and-fro motion that exerts a uniform pressure on the blade attached to it.

这个词出现在以下图解场景（1）