The phrase "a main conclusion" is correct and usable in written English.
It can be used when summarizing the primary finding or result of a discussion, analysis, or argument.
Example: "After reviewing the data, the researchers presented a main conclusion that supports their hypothesis."
Alternatives: "a primary conclusion" or "a key conclusion".
As a main conclusion, this work showed the feasibility of estimating strains inside the structure using surface measurements.
A main conclusion is that the two existing Farm Software Ecosystems can improve configuration of different ICT components.
This research supports a main conclusion that brain changes can be corrected, in this case, with the recognition of error and change of conduct.
A main conclusion is that the FSW process produces reliable results, fulfilling the predetermined requirements for minimum copper thickness by a very good margin.
As a main conclusion, added mass effects are proved to have a significant influence on the dynamic response of the nuclear reactor.
A main conclusion is that there are no legal barriers that render a PBD programme impossible in Stockholm, even though there are some legal restrictions.
As a main conclusions we will mention that, the proposed method are sufficiently accurate compared to the finite element method, confirming the validity of the hypotheses adopted in the development of the method and; the reduction of the computational effort, since the structure does not need to be discretized into a large number of elements for the convergence.
A second main conclusion is that with reasonably good user grouping, JT CoMP combined with fair opportunistic scheduling provides significant performance gains for practically all of the sets of investigated user positions.
In Section 3 we are devoted to a proof of the main conclusion.
Through a set of clever analyses, the authors draw their main conclusion that a trial-by-trial index of decision dynamics, derived from the PCA analysis of LFP data, was largely correlated with the chosen value.
More importantly since this is an in vivo assay, if there were a bridging protein it would still be present, so the main conclusion about a charged interaction is being the main interaction cannot be concluded from this experiment.
