The phrase "a system of locks" is correct and usable in written English.
It can be used when referring to a collection or arrangement of locks that work together for security or access control purposes.
Example: "The building is secured by a sophisticated system of locks that ensures only authorized personnel can enter."
Alternatives: "a network of locks" or "a series of locks".
There was a system of locks and a long-established trade in coal, flour and timber.
As new parents, my wife and I installed a system of locks on our cabinets and drawers.
(Marie Antoinette demanded a system of locks that allowed her to bolt her bedroom doors from the bed, furthering rumors of infidelity).
The government has built, or has now in process of construction, a system of locks and dams on the Allegheny which will slackwater the stream for 27 miles from its mouth.
He established Chulalongkorn University in 1916, built a system of locks to control the level of waterways throughout the city, and gave the public its first and largest recreational area Lumphini Park.
The Morganza spillway is part of a system of locks and levees built following the great flood of 1927.
Bonatz's most celebrated works, like a system of streamlined locks and bridges built along the Rhine in the late 1920s, have a spare elegance reminiscent of the best examples of W.P.A. architecture in America.
Senior commanders at the Army Corps of Engineers manipulated an economic analysis to justify the proposed construction of a $1 billion system of locks along the Mississippi and Illinois Rivers, according to a sharply critical report released today.
The Swedish government recently began a promising competition for a design that would replace a decrepit 1930s-era bringe in the heart of Stockholm with a seamless system of locks, roadways and shops.
A25 Report Cites False Data Senior commanders at the Army Corps of Engineers falsely manipulated an economic analysis to justify the proposed construction of a $1 billion system of locks along the Mississippi and Illinois Rivers, the Army's inspector general reported.
He also designed a complex system of locks and drawbridges to accommodate the numerous commercial ships that navigate the kill.
