Identification of motifs that significantly associate with antisense sequence activity

A venturi tube fluid flow meter comprising an inlet section with a first pressure probe upstream of the throat section that is an inner-end closed tube traversing the diameter of the inlet section and pressure probe that is a capped tube extending into the flow path of the throat section at the minimum diameter thereof with this tube containing two perforations 180 DEG apart and orthogonal to the center line of the throat section.