The most basic contour that can be considered for a nozzle is a truncated cone.
最基本的轮廓，可以被视为一个喷嘴是一个截断锥。
2
Four row circular cone roller bearings its performance and double row circular cone roller bearings basic same but may withstand the bigger radial direction load and the two axle to the load.
四列圆锥滚子轴承其性能与双列圆锥滚子轴承基本相同，但可承受更大的径向载荷和双轴向载荷。
3
Four row circular cone roller bearings its performance and double row circular cone roller bearings basic same, but may withstand the bigger radial direction load and the two axle to the load.