"most significant conclusions" is correct and usable in written English.
You can use it when summarizing a conclusion or the most important findings in a document or article. For example, "In conclusion, the most significant conclusions from the study are that the disease is preventable and treatments are available."
A literature review was completed on the effects of exfoliation corrosion and fatigue interaction and the most significant conclusions are presented in this paper.
One of the most significant conclusions was a commitment to a move away from long-term 'care and maintenance' programmes to an approach focused more on self-reliance and local solutions for refugees.
Among the report's most significant conclusions is a finding by investigators that the blowout came up the center of the pipe, not along the outside of the well casing, the area known as the annulus.
"What information would be provided to help or be a reference for the rig site personnel in implementing those decisions?" 10.57pm: The New York Times weighs in with a detailed news piece: Among the report's most significant conclusions, investigators say that the blowout came up the center of the pipe and not up the outside of the well casing, the area known as the annulus.
Besides, one of the most significant conclusions indicates that the effect of the interceptor decreases from keel to chine for the same blade deployment heights so the blades should be controlled separately at least in three parts from keel to chine area, if operable.
The £10 note features HMS Beagle, the vessel on which Darwin collected a mass of specimens and notes from which he drew his most significant conclusions.
Friedan's most significant conclusion, that "education, and only education, has saved American women from the great dangers of the feminine mystique", struck her contemporaries as dangerously radical.
The most significant conclusion is that the complex interaction between ventilation, thermal comfort and acoustics presents considerable challenges for designers.
The most significant conclusion reached is that a form of rotating stall dominated the low frequency noise production in various configurations with no outlet diffuser or casing.
The most significant conclusion of the investigation is that the ANNs can reliably approach the seismic damage state of r/c buildings in real time after an earthquake.
Whether or not that's true, Roller and co end by pointing to their most significant conclusion: "Finally, we showed that Brazil tweets by far the most about beer.
