doublescrew

doublescrew

美  英

  • 网络双螺旋桨双头螺纹

例句

Talking about the Pulp Washing Process Consisted of Drum Vacuum Washer and DoubleScrew Washer from Black Liquor Extraction Calculation

从黑液提取计算谈鼓式真空洗浆机与双螺旋挤浆机的组合流程