The phrase "a number of permanent" is correct and usable in written English.
It can be used when referring to multiple permanent items, positions, or conditions in a context where quantity is relevant.
Example: "The organization has a number of permanent staff members who contribute to its success."
Alternatives: "several permanent" or "multiple permanent".
Milton Keynes also has a number of permanent theatres and music venues, including Milton Keynes Theatre (1999).
No 866 United Nations Plaza houses a number of permanent missions to the U. N. and, in Room 4030 the Atomic Extermination Corporation.
Attempts to colonize the peninsula were fruitless until Jesuit missionaries established the first of a number of permanent settlements at Loreto in 1697.
Sixteen months of cold and sleepless nights at Bonfire No. 17, one of a number of permanent burning barricades set up here, have taken their toll.
The assembly of the WEU, which had a number of permanent committees (political defense, technological and aerospace, rules of procedure and privileges, and parliamentary and public relations), consisted of the delegates of the member countries to the Parliamentary Assembly of the Council of Europe; it met at least twice each year (normally in Paris).
The Ohio Historical Society has a number of permanent and rotating exhibits showcasing various aspects of Ohio history.
Each house of Congress has a number of standing (permanent) committees and select (special and temporary) committees.
But she clearly looks back with nostalgia to a time when she was one of a number of female permanent secretaries in Whitehall.
Newfoundland was the site of a British colony based at St . Johns, and the French colonial base was at Plaisance, with both sides also holding a number of smaller permanent settlements.
The rollout pilot project, called "Using Information and Communications Technology as an Enabler for Health, Shelter, and Education infrastructures in Haiti," is focusing first on getting a number of local permanent hospitals and IDP camps using primarily donated equipment such as Redline, Airaya, and Cisco wireless communications gear.
In FilaBavi, a number of the permanent interviewers were trained to measure children.
