The phrase "a sharp deterioration of" is correct and usable in written English.
It can be used to describe a significant decline or worsening of a situation, condition, or quality.
Example: "The report highlighted a sharp deterioration of the environmental conditions in the region over the past year."
Alternatives: "a significant decline in" or "a marked worsening of".
"Over the past year, there has been a sharp deterioration of the human rights situation in the country," the OHCR experts said.
The meeting itself was exceptional, marking a rare personal encounter between and a prominent American official and Mr. Chávez, following a sharp deterioration of political relations between the Bush administration and Venezuela's government.
The Bush administration's plans to place parts of the missile defense system in Poland and the Czech Republic, which were once part of the Soviet military alliance, led to a sharp deterioration of relations between Washington and Moscow.
With only days to go before world leaders gather in New York, the maneuvering became an exercise in brinkmanship as the administration wrestles with roiling tensions in the region, including a sharp deterioration of relations between three of its closest allies in the region: Egypt, Israel and Turkey.
Argentina has suffered a sharp deterioration of its economy, especially over the last four years, and the imposition of currency controls, the seizure of private assets, including the national airline, the main oil company YPF, and a second default on debt owed to the funds, have left the country more isolated than ever.
Of course, you could describe the problem via a different channel: in both countries, the collapse of the national narrative has predictably been associated with a sharp deterioration of the public sphere and a huge increase in corruption, which makes these societies worse places to raise children.
In case of failure or a sharp deterioration in performance of one system the other will, by way of redundancy, increase its throughput to make up for the loss.
In its fourth survey of opinion of Afghans, ABC News, with the BBC and ARD German TV, found a sharp deterioration in views of Afghanistan's president, Hamid Karzai (83% deemed him excellent or good in 2005; 52% do now), and the U.S. government (68% called it excellent or good in 2005; 32% do now).
The Sumitomo Mitsui Financial Group, Japan's third-largest bank, reported a net loss of 234.2 billion yen ($2.17 billion) for the fiscal year ended March 31, a sharp deterioration from a profit of 330.4 billon yen a year earlier, as it took large charges to write off bad loans.
The plan is attached to a warning: "If India continues with its current unplanned urbanization path, it will result in a sharp deterioration in the quality of life in its cities, putting even today's rates of economic growth at risk".
Data released by Nationwide last week has also shown a sharp deterioration in the health of the housing market over the last few months.
