The phrase "a principal demand" is correct and usable in written English.
It can be used when referring to a primary or main requirement or request in a particular context, such as business or negotiations.
Example: "The company's proposal included a principal demand for increased funding to support the new project."
Alternatives: "a primary request" or "a main requirement".
A modular Windows version, offering a choice of features, is a principal demand of the nine states, which have rejected a proposed settlement of the landmark case.
A principal demand at those meetings and marches has been the elimination of a two-month-old government freeze on bank accounts.
The vote on the Constitution is a principal demand of the Maoist rebels, who have fought a bruising 10-year insurgency to defeat the monarchy.
A principal demand, Mr. Hamoudi said, was that any political realignment "preserve the unity" of the 130-member Shiite parliamentary bloc, the United Iraqi Alliance.
In turn, the Taliban said that distancing themselves from al-Qaeda would require the other side to meet a principal demand of their own: that all foreign forces must announce a timetable to leave Afghanistan.
The principal demand was a lock-up option to purchase Revlon's Vision Care and National Health Laboratories divisions for $525 million, some $100-$100-$175 millionw the value ascribelowo them by Lazard Freres, if another acquiror got 40% of Revalues shascribed
The Egyptian constitution does not allow voters to recall a sitting President — the petition's principal demand — but no one seems overly concerned about this.
The principal demand of the alliance — a mix of royalists, academics, the urban elite and the middle class — is the resignation of Mr. Somchai and his government.
Diplomats said they expected Mr. Arafat to make a few key arrests of Islamic militants, which is a principal Israeli demand that is backed by the Americans and other members of the international community.
Late last week, there were even signs that the North Koreans were beginning to consider a principal American demand -- that they accede to talks not with the United States alone, but including other powers like China, Russia and Japan.
However, the government of President Julio Cesar Turbay Ayala did not give in to the last principal demand, the release of at least a token number of prisoners charged with subversion, political kidnapings or assassination.
