Four Head Rifled Tube  四头内螺纹管

inclined rifled tube  倾斜内螺纹管

increasing twist rifled gun  渐速膛线火炮

modeling of cold drawing rifled tubes  内螺旋凸筋管建模

parallel inclined rifled tube  倾斜并联内螺纹管

Parallel vertical rifled tube  垂直并联内螺纹管

Parallel vertical rifled tubes  垂直并联内螺纹管

rifled barrel  膛线炮管

rifled gun  线膛炮

rifled pipe  内螺纹管; 采掘迹煤开采

rifled sheet iron  绉纹铁

rifled steel tube  内罗纹钢管

rifled tabe  内螺旋管

rifled tube  内螺纹管; 螺旋槽管

Rifled Tubes  螺纹管

rifled tubing  内螺纹管

Rifled Water Wall  内螺纹管水冷壁

structure of rifled barrel and cannon shell  弹炮结构

verti cal rifled waterwall temperature difference between adjacent tubes  垂直内螺纹管水冷壁