The phrase "exact mechanism" refers to the specific and detailed process or way in which something happens or works. It focuses on understanding the precise details and steps involved. Full definition
Tramadol's exact mechanism of action is unknown, but it's similar to morphine. (1800petmeds.com)
The «exact mechanism for achieving that is less important than ensuring jobs», Corbyn says. (politics.co.uk)
«Primary metabolites in maca are the proteins, carbohydrates, fibers, fats, vitamins, and minerals while secondary metabolites relate to the medicinal properties, although exact mechanisms are still largely unknown. (supernutritionlife.com)