The phrase "ad hoc operation" is correct and usable in written English.
It is typically used to describe a task or operation that is created for a specific purpose or situation, often on a temporary basis.
Example: "The team organized an ad hoc operation to address the unexpected challenges that arose during the project."
Alternatives: "temporary operation" or "specialized operation".
"This is an ad hoc operation, glued together over about four or five weeks' time," he told the House International Relations Committee, adding that his team "didn't really have enough time to plan".
It was an audacious and ad hoc operation, planned only on the evening before its execution, and it was given, by the army colonel who commanded it, the name Thunder Run.
Mr. Clinton's United Nations speech tomorrow will also endorse a report, issued by a special advisory group to Secretary General Kofi Annan, that the peacekeeping department be augmented by an interdepartmental panel that could do more continuous planning and make peacekeeping less of an ad hoc operation.
Wireless local area networks (WLAN) and practical personal or sensor networks usually use random access control in their ad hoc operation mode [9, 10].
It is one of several ad hoc operations within the disaster area, including one sponsored by the four-star chef David Bouley.
Each of these ad hoc operations requires its own design, and Ms. Slaughter has crafted a brilliant approach that can only improve the situation.
To prevent spreading of the disaster, ad hoc operations to protect both the structure of the building and the remaining technological equipment were developed.
Most groups are ad-hoc operations made up almost entirely of volunteers with shoestring budgets.
Think of Claire Danes's C.I.A. employee in "Homeland," who turns her Georgetown one-bedroom into a control bunker for an ad hoc spying operation.
Such bureaucratic friction has always limited the scope of ad hoc co-operation.
There is little that is ad hoc about their operation.
