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хлор фтор көміртектері (ХФК)
Any of a number of substances consisting of chlorine, fluorine, and carbon. CFCs are used for refrigeration, foam packaging, solvents, and propellants. Visit the Cal/EPA website for more information.
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жарық қорабы
box of fluorescent tubes balanced for white light and covered with translucent glass or plastic. Used for viewing, registering or correcting film ...
