The phrase "a large discrepancy between" is correct and usable in written English.
It can be used when discussing differences or variations between two or more items, data sets, or situations.
Example: "There is a large discrepancy between the reported sales figures and the actual revenue generated last quarter."
Alternatives: "a significant difference between" or "a considerable gap between".
There is a large discrepancy between the carbonyl and hydroxyl formation rates of these two materials.
There is often a large discrepancy between the questions raised by policy makers and the responses offered by scientists.
There was a large discrepancy between patients/caregivers and HPs regarding the amount of information they believed had been given.
More than a dozen indoor air quality studies have reported a large discrepancy between concentrations measured by stationary indoor monitors (SIMs) and personal exposure monitors (PEMs).
In the literature, there is a large discrepancy between reported values of electrochemical, kinetic and transport parameters of hydrogen storage alloys.
However, there is a large discrepancy between footprints of currently available cervical disc prostheses and anatomic dimensions of cervical end plates.
The results show a large discrepancy between the empirically determined hydraulic conductivities and the directly measured hydraulic conductivity with lab and in situ permeameter tests.
Cross-examination during the case of Adani's experts revealed a large discrepancy between their estimations of jobs and state government royalties and taxes to flow from the project and those publicly touted by Adani.
Comparative experimental results have shown there is a large discrepancy between the magnitudes of the cathodic current obtained by the two techniques.
If there is a large discrepancy between sections the grades will be normalized to take this into account (if you want to understand exactly how this will be done ask me or you your TA).
However, there is still a large discrepancy between the continuous and high resolution mapping of the horizontal SOC variability on the one hand, and the coarse and discontinuous mapping of the vertical SOC profile on the other.
