Relier Pairs Vocabulary Practice Version en ligne Second misterm portfolio activities par Diana Ivette Tapia Fernández 1 2 assembly line 3 n. natural substances used to manufacture products 4 n. a building used to store products before they are 5 Chemicals 6 factory 7 8 v. to check that products, especially new ones, work properly 9 quality control 10 manage (verb) n. an efficient sequence of workers and machines n. the use of machines with little or no human control warehouse n. a building where things are made with machines raw materials fertilizers, plastics, paints n. a system to ensure that the standard of a product is always good test v. to plan and develop new things, e.g. new products