The French fries picking machine you are referring to is designed to sort out any unqualified or defective French fries from the production line, to ensure the quality of the finished product. The French fries picking machine has a conveyor belt that carries the French fries through a picking table where workers manually sort out any fries that do not meet the desired quality specifications, such as shape, size, or color. The unqualified fries are removed and discarded, and the qualified ones are carried further down the conveyor belt for further processing or packaging.