yarn rod（纱线杆）是什么意思？音标发音+图解场景

纱线杆 /ˈjɑːn ˈfiːdə/ n

English: yarn rod · 纱线杆

释义：Piece connected to the knitting machine; its function is to support the tension mechanism.

这个词出现在以下图解场景（1）