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