短語詞組短語rocker r bar furnace 搖桿推料爐rocker r bar 搖桿rocker -bar heating furnace 搖桿式加熱爐rocker bar furnace 搖桿推料爐rocker bar bearing 鉸鏈支座torsion -bar and rocker structure 扭桿搖臂 返回 rocker bar