coupling of channel flow with seepage flow

flow shear force and physicochemistry of flow

Measuring surface flow direction and flow rate

overland flow and channel flow

The ratio of pulmonary flow to systemic blood flow

transition from free surface flow to pressurized flow

transition of gate flow and weir flow

varied flow from free-surface to pressure flow

achromatic doublet

acoustic doublet

A-doublet

doublet

doublet antenna

doublet code

doublet filter

doublet lens

doublet magnifier

doublet modulation

earthquake doublet

electric doublet