helical curve
短語(yǔ)詞組
- helical curve cutter 螺旋刃刀具
- helical curve cutters 螺旋刃刀具
- equal changeable column helical curve 均變圓柱螺旋線
- concrete -Mixer drum helical curve 攪拌罐螺旋線
- non -equiangular logarithm helical curve 非等角對(duì)數(shù)螺旋線
- helical coil steam generator curve 螺旋曲線 返回 helical curve