"main proportion" is correct and usable in written English.
You can use it to refer to the most significant or major part of a number or amount. For example, "The main proportion of the budget was allocated to education."
In our hands, the main proportion of the cells was transfected with given DNA amounts using a short single HV pulse.
In accordance with other studies [ 20, 28, 30], we found that a main proportion of neonatal deaths occurred very early.
The main proportion (more than 80%%) of THR patients suffered from osteoarthritis, followed by rheumatoid arthritis or osteonecrosis [ 1].
The main proportion of the total non-shared environmental factors were due to factors specific for each informant (52 91%).
To elucidate the complete sequence of the hapX gene we subsequently used degenerate primers to amplify the main proportion of hapX from cDNA.
The main proportion of the unmarried patients were not in a steady relationship, in the male patients this ratio was as high as 95%.
In Australia it has become the practice, accepted by both employers and trade unions, to have the main proportions of the wage structure and the movements of the general level of wages determined by the awards of arbitrators to whom these issues are submitted in the form of disputes.
A principal components analysis (PCA) based on shape variables of the PDP is further provided in order to compare the main proportions of this bone in extant great apes, humans and fossil hominins, as well as ratios of relative phalangeal robusticity.
The bentonite samples were characterized by the main variable proportion of bentonite in the natural and intercalated forms (2, 5, 10, 15, 20, 25, 30, and 35%% by weight of cement) in the replacement mode whiles the amount of cementations material.
Main outcome Proportion of newspaper stories with specific quality measures (adjusted for whether the quality measure was present in the journal article's abstract or editor note).
The length distribution ranged from 18nt to 44nt and peaked at 20nt, with a secondary peak at 21nt, implying that the main siRNA proportion comprised TE-derived small RNAs (Additional file 2: Table S3).
