The phrase "a combination of useful" is not correct as it is incomplete and lacks context.
It can be used when describing something that is made up of various useful elements or components, but it needs to be part of a complete thought.
Example: "The project is a combination of useful tools and resources that enhance productivity."
Alternatives: "a mix of helpful" or "a blend of beneficial".
Based on the synthetic biology pSB1C3 platform, the resulting vector offers a combination of useful features: the strong T7 promoter combined with lac operator, OmpA signal sequence, a selection of cloning sites located at convenient positions and a 3′-terminal His-10 tag.
Unlike a set of naturally diverse germplasm, this population is tailor-made for breeders with a combination of useful traits derived from multiple elite breeding lines.
Furthermore, mixed nitrides often have a combination of useful properties derived from their component nitrides, such as thermal stability and conductivity.
A combination of relatability, useful content output and forging influencer-audience relationships has created a rapport of trust and a level of authority for non-celeb influencers.
Samsung unwrapped its long-awaited e-book reader for the American market this week, and it's a curious combination of useful features and an important missing feature.
With its high-torque electric motor and clever packaging, the i MiEV offers an intelligent combination of useful performance with small physical and carbon footprints, plus a roomy interior and a sensible range of approximately 80 miles from its advanced lithium-ion battery pack.
It's a combination of the genuinely useful and the just sort of novel, but the hardware maker has clearly spared no expense getting itself on the global map with this thing. .
In Figure2 we depict how often a source or a combination of sources were useful for diagnosing an infection, which illustrates the complementary utility of the four data sources.
The encapsulated nuclear heat source (ENHS) is a new Pb-Bi cooled modular reactor concept that features a combination of the following useful features that may make nuclear energy more attractive: (1) 20 years of full power operation without refueling.
Clinicians may find a combination of these interventions useful, depending on individual patients' preferences and challenges.
We found that a combination of miRNAs was useful for the discrimination of tissues with a tubular structure.
