scroll casing

插入反转控制器_馆档网 ... "screw socket" 螺旋灯座" "scroll casing" 涡形壳" "seal in switch" 串入开关" ...

直角三角形_馆档网 ... "画线针盘"," scribing block" "蜗形壳"," scroll casing" "蜗形夹头"," scroll chuck" ...

浮法玻璃专业英语（Refractory English） - 豆丁网 ... 板翅式换热器 plate-in heat exchanger 蜗壳 scroll casing 油封 oil seal ...