"main point that" is correct and usable in written English.
You can use it when you want to introduce a point or topic that will be discussed more fully in the sentence or paragraph. For example: "The main point that I want to make is that bullying is a serious problem in our schools."
Therefore, quantification of operation deviation from OCV is the main point that is discussed in the present paper.
Despite the attacks, the authors did not budge from their findings and their main point — that slavery would not have ended without the Civil War.
Walzer's main counter-argument against these pacifist counter-examples is that they only illustrate his main point: that effective non-violent resistance depends upon the scruples of those it is aimed against.
After our investigations, the main point that got our attention was that Evin Hotel (A2) achieved the best rank of quality service using our proposed method and all of the discussed method except for Cheng's approach.
Maybe his advice is more nuanced than that, but that is the main point that has come through the public media.
One main point that could use further clarification concerns the distinction between subtractive versus divisive inhibition.
The main point that is relevant to the current study is that VEGFR3 contributes to flow signaling similarly to VEGFR2.
And his main point -- that the compass was a terribly important invention that profoundly shaped the history of the world -- is an obvious one.
He misses the main point -- that whatever the voters have taken away, only the voters should have the authority to give back.
Alden's main point - that the documents say nothing about privatizing and deregulating services - is belied by 20 years of experience with the Global Agreement on Trade in Services (GATS) of the World Trade Organization (WTO), on which the TISA is based; on previous TISA research; and on analysis of the documents, along with the texts provided by WikiLeaks.
Even if the "letter is a forgery...it does not affect the main point...that without a specific act of Creation that undermines Christianity.... .. New York Evangelist, October 19, 1882, volume 53, no.
