Fire hydrant
![Fire hydrant in Charlottesville, Virginia, USA](/Images/godic/202502/18/Downtown_Charlottesville_fire_hydrant4008.jpg")
![Clapper valve](/Images/godic/202502/18/Clappered4008.JPG")
![A New York City hydrant hooked to an FDNY fire engine with a turgid hose actively pumping water.](/Images/godic/202502/18/Hydrant_to_truck4008.jpg")
![Children playing in the spray of a fire hydrant in Philadelphia, Pennsylvania.](/Images/godic/202502/18/Philadelphia_fire_hydrant4008.jpg")
A fire hydrant is a connection point by which firefighters can tap into a water supply. It is a component of active fire protection.
Underground hydrant
英语百科
- right atrial lead
- right atrial mean pressure
- right atrial monophasic action potential
- Right atrial myxoma
- right atrial pacing
- right atrial potential
- Right atrial pressure
- right atrial pressure elevation
- right atrial P vector
- right atrial rhythm
- Right atrial to left ventricular shunt
- right atrial veins
- right atrial ventricle
- right atrial volume
- Right atrioventricular groove
- Right atrioventricular orifice
- Right atrioventricular ostium
- Right atrioventricular valve
- Right atrioventricular valves
- right atrioventricular valve, tricuspid valve
- right atrium
- right atrium body
- right atrium dependant conduit
- right atrium of the heart
- right atrium of the hearts