The phrase "an important necessity" is correct and usable in written English.
It can be used when emphasizing the significance of something that is essential or required.
Example: "Access to clean water is an important necessity for maintaining public health."
Alternatives: "a crucial requirement" or "an essential need."
Research on adaptation to such environments has concentrated on individuals, but a focus on group variables is an important necessity.
To fulfill these requirements an accurate performance evaluation method which enables to see the effects on the exhaust gas composition is an important necessity.
An improved quality of life through education and developmental communication is an important necessity of societal up-liftment in the new millennium, especially in the developing nations.
The price of agricultural commodity, which is an important necessity, is closely related to people's lives.
These criteria are an important necessity in developing the watermarking algorithms.
It is a well-known fact that fresh water is an important necessity for our health.
Furthermore, because people were often left with nothing after the tsunami had swept their area, many valuable personal items and even bodies were left in the debris, making sorting through it an unpleasant yet important necessity.
What this means is peace of mind, and when it comes down to it, this is the most important necessity for a relaxing vacation.
There was an important technical necessity to have a relatively high initial palmitate in the incubations.
Once cancer is identified, an important diagnostic necessity is the accurate determination of the full extent of disease, as this directly impacts the type of surgical intervention and postoperative therapy the patient receives.
Participants understood that being physically active was beneficial for health and wellbeing, yet they did not recognise it as a important daily necessity, but rather a luxury.
