1. raw material
Lead is the raw material used in factories.
subjects of labour (natural resources and raw materials)
英語 "という言葉сырье"(raw material)集合で発生します。
с англ на рус2. feedstock
Large deposits of fossil fuels are used for energy production and as feedstock for chemical production.
英語 "という言葉сырье"(feedstock)集合で発生します。
lesson oil 3