The phrase "an extensive applications" is not correct in written English.
It should be "extensive applications" or "an extensive application" depending on the context.
Example: "The software has extensive applications in various industries, including healthcare and finance."
Alternatives: "wide-ranging applications" or "broad applications."
Co Ting Keh was picked out of nearly 2,000 applicants, who all created an original research project and completed an extensive application process.
Boron (B) has an extensive application prospect in the field of aerospace propulsion.
After an extensive application process, InSITE fellows join consulting teams that work with selected startups seeking venture capital financing.
As a kind of clean, substantial and renewable energy, solar energy can reduce environmental pollution with an extensive application potential.
This report presents an extensive application in the development of high-capacity, ultra-broadband, and integrated optical communication systems.
Pulsed columns are one of the most important liquid liquid extraction equipments which have an extensive application in different industries.
In addition, the bionic non-smooth surface structure has an extensive application prospect in drilling engineering, due to its properties of wear, anti-sticking and resistance reduction.
The fast track nature of the design and construction during product development requires an extensive application of CAD, where individual contractors responsible for electrical, mechanical, and ducting work can be networked on site, and could refer to CAD data from each other.
He has an extensive application process that requires grant seekers to develop business and marketing plans for their proposals.
As part of the vetting process, each developer fills out an extensive application form, including links to their GitHub, LinkedIn, and Stack Overflow profiles.
