In addition to this chemical phenomenon, backflow also represents a social trend: "backflow for quick sale", "family backflow", "returning home after graduation"western worldIs suffering the worst in half a centuryeconomic crisis"Backflow" has become a popular word in overseas Chinese circles.
DefinitionAcupuncture and MoxibustionTerminology.In the process of sensory transmission extension, after the stimulation stops, the sensory transmission sometimes does not disappear, but flows back to the stimulation point along the original path, and then gradually disappears after reaching the point. This phenomenon is called reflux.(Experimental Acupuncture and Moxibustion)
【Concept] Backflow: ① Also called eddy current.AroundVertical axis(water depth direction)Rotary motionOfSidestream。Because the pressure of the rotating part is low, the water surface is often concave into vortex.It is often located at the edge of the mainstream and rotates in a closed state.In alarge scaleOften accompanied by refluxsmall scaleSecondary reflux.It is mainly caused by local deformation of water flowSeparation phenomenonAppears on the separation surfacefrictionBut arouses.It is commonly found at the place where the riverbed is suddenly widened, upstream of the riverbed where the riverbed is narrowedCutting bendingHougu River entranceExcavated harbor basinInsideSpur dikeIn inter dam field, gate hole, pierWater fallDownstream of buildings, etc. ②Returnable to the ground during rainstormInterflow。When the flow in the soil encounters relatively negativePervious layerIf the permeable layer thins down along the slope surface, it will return to the ground below the slope surface;Or when the thickness of the flow in the soil increases due to the converging streamline of the concave slope, it is formed.(Hydrology)
Chinese name
backflow
Pinyin
huí liú
English translation
reflux
Interpretation
To flow past or out and back
Phonetic transcription
ㄏㄨㄟˊ ㄌㄧㄨˊ[1]
Origin
"Going to the Western Tombs to See the King"[1]
interpretation
Flowing past or out and back;Backflow: river water ～;Talents~.[2]
