On technical improvement of the collecting gutter of horizontal sedimentation tank 平流沉淀池集水槽工艺改造研究
2.
Rush feed turns the filter wheel to remove solids that saves manual washing 目筛网转轮,转轮圆周设有集水槽,收集进流水使滤网转动达到清除固体物之目的。
3.
Specification for safety of household and similar electrical appliances - particular requirements - heated gullies for roof drainage 家用和类似用途电器的安全性.特殊要求.屋顶排水用加热集水槽沟