The phrase "a great necessity" is correct and usable in written English.
It can be used when emphasizing the importance or urgency of something that is required or needed.
Example: "In times of crisis, access to clean water becomes a great necessity for survival."
Alternatives: "an essential requirement" or "a vital need".
There is a great necessity for development of novel sensory concepts supportive of smart sensing capabilities in defense and homeland security applications for detection of chemical and biological threat agents.
During the 1990s and the beginning of the 2000s, sugarcane industry faced an open market perspective, thus, there was a great necessity to reduce costs in the production processes.
"The vision that Vicente Fox proposed, of what needed to be done in Mexico, of the changes that he thought needed to be carried out, was a vision that at the time sounded like a dream, but it was a great necessity for the country," Mr. Derbez said in an interview.
There is a great necessity for the development of these multifunctional nanocomposites, but there are some difficulties and challenges to overcome in their fabrication such as quenching of the fluorescent entity by the magnetic core.
Look, $20. That's a great necessity.
"People did not do anything until there was a great necessity," Arbatov said.
However, there is a greater necessity to consider individual requirements for people with physical disability.
It's helped us cope with the misery and it eases my heart". Dorgham believes that the murder of Deah, Yusor, and Razan rekindled an awareness of Islamophobia but he also recognizes that this tragedy has established a greater necessity to fight injustice.
A subgroup analysis showed reduced survival with a greater necessity for orthotopic liver transplantation (OLT) only in patients with persistence of Candida (p = 0.007).
Aho Williamson, however, does not see any great necessity for dramatic change.
Due to the intrinsic complexity and uncertainty of MBR processes, basic models that can provide a holistic understanding of the technology at a fundamental level are of great necessity.
