The phrase "automatic supply" is correct and usable in written English.
It can be used in contexts where something is provided or delivered without manual intervention, often in relation to systems or processes that operate independently.
Example: "The automatic supply of electricity ensures that the facility remains operational even during outages."
Alternatives: "automated provision" or "self-supplying system".
In the soil experiment, plants were grown under high-watered or low-watered conditions controlled by an automatic water supply device (UNSU CSK-5500, Sankeiriika inc).
Adult mice of the same gender were housed in polycarbonate cages suspended on a rack with automatic water supply (2 5 mice per cage) in a facility with temperature, humidity and ventilation regulated.
The rabbits had free access to water (automatic water supply), autoclaved hay, and straw ad libitum as well as to standard pellet diet (Kliba Nafag, Nr. 3410, Provimi Kliba AG, Switzerland).
The American military lost track of some 190,000 pistols and automatic rifles supplied by the United States to Iraq's security forces in 2004 and 2005, government auditors determined.
During a tour of the Interior Ministry compound in eastern Baghdad, Iraqi government officials also said for the first time that they accepted estimates by American oversight officials that some 190,000 pistols and automatic rifles supplied by the United States to Iraqi forces in 2004 and 2005 were unaccounted for.
Automatic feeders supplied the feed.
Opened in 1903, the workhouse at Hunslet in West Riding of Yorkshire had two steam boilers with automatic stokers supplying heating and hot water throughout the building, a generator to provide electricity for the institution's 1,130 electric lamps, and electric lifts in the infirmary pavilion.
But unlike, say, MapQuest, they do not supply automatic distance measurements.
We provide experimental verification of that the atmospheric pressure sensor device has the characteristics of a simple structure, lack of an external power supply, automatic temperature compensation, and high sensitivity.
