{HEAD ~ The overpressure} at which {TAIL ~ the valve} opens depends on the surface tension of the carrier liquid and the mean pore diameter of the carrier material according to the equation p = 2 gamma/R, where gamma is the surface tension and R the mean pore diameter of the carrier material 
{ HEAD ~ The overpressure } at which { TAIL ~ the valve } opens depends on the surface tension of the carrier liquid and the mean pore diameter of the carrier material according to the equation p = 2 gamma / R , where gamma is the surface tension and R the mean pore diameter of the carrier material
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH