The phrase "a major operating" is correct and usable in written English.
It can be used in contexts where you are describing a significant operation or function within a system, organization, or process.
Example: "The company is undergoing a major operating change to improve efficiency and reduce costs."
Alternatives: "a significant operation" or "a key function".
The Operations Ground System has operated without problems and the ground team successfully completed a major operating system and software upgrade in November 2000 with no impact to operations.
Qualcomm is betting that Google becomes a major operating software company.
Wear is a major operating problem for semi-autogenous grinding (SAG) mills.
Unlike a minor software change installed by a service technician at a dealership, Ford said it made a major operating system upgrade to its Microsoft-backed telematics system.
The area has the added advantage of being close to the U.S. border, and for all these reasons, it is now a major operating base.
The case of the crude preheat train is known to be the first pinch study performed on a major operating plant.
The kernel is a major operating-system component that bridges applications and the computer hardware.
Additionally, the recently eliminated Young Artist grant program, which provided opportunities for District residents under age thirty at a total annual cost of a single major operating support grant, should be restored.
If Mozilla succeeds at becoming a third major operating system, there may be many more apps that spring from the Web.
gPROMS software was used to study the dynamics of a multistage flash desalination brine circulation system (MSF-BR) as a function of major operating parameters.
In just four months, they've had more than 150 meetings with industry leaders and several Pioneers have secured a total of seven field trials with major operating companies – an essential step towards fully commercializing their technology solutions.
