The phrase "are necessary for efficiency" is correct and usable in written English.
It can be used when discussing the importance of certain elements or actions that contribute to achieving efficiency in a process or system.
Example: "The following resources are necessary for efficiency in our production line: skilled labor, advanced machinery, and effective management."
Alternatives: "are essential for effectiveness" or "are crucial for productivity."
The energy-storage apparatus is necessary for efficiency and to make surplus energy available when the demand is greater than the supply being generated.
Mr. Vetter said that while some streamlining was necessary for efficiency, designers needed to devise shapes that would behave acceptably in crosswinds.
Teaching in the patient's presence may be necessary for efficiency and maintaining a relationship between the preceptor and the patient.Further studies are needed to determine if explanation or teaching methods can overcome this aversion.
However, populations with optimal mutation densities are necessary for screening efficiency and optimizing mutagenic treatments requires measuring mutation densities.
Further research and development on fuel processing are necessary for improved energy efficiency and reduced size of fuel processor.
However, complications associated with rapid protein degradation and diffusion, the cost of the high doses required for efficacy, and concerns over a correlation between extremely high doses of rhBMP-2 and cancer incidence suggest that spatiotemporal delivery strategies are necessary for the efficacy, efficiency, and safety of recombinant growth factor delivery9,10,20,21,22.
We also show that these conditions are necessary for ex-post efficiency to be attainable with budget balance and individual rationality, and that the expected social surplus in these mechanisms can be distributed in any desirable way.
Conversely, higher crude glycerol concentrations are necessary for improving production efficiency.
As higher solar receiver output temperatures are necessary for higher thermal cycle efficiency, current CSP research is focused on high outlet temperature and high efficiency receivers.
In this paper new assessment method for more precise determining of cooling loads and seasonal cooling demands of residential buildings are developed, which are necessary for right solutions of cooling efficiency problems.
