helical flow
短語詞組
- Helical attenuation flow 螺旋衰減流
- helical -flow sludge blanket contact clarification 旋流接觸澄清
- helical laminar flow 層流螺旋流
- outer -helical-flow 外旋流
- eccentric annuli helical flow 偏心環(huán)空螺旋流
- tangential helical flow turbine [機(jī)]切向螺旋流式渦輪
- helical flow pump 旋流泵 返回 helical flow