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sulfur-free [ˌsʌlfə'friː, -fər'-]stresses
chem. бессерный
polym. не содержащий серы
tech. бессернистый
sulfur -free: 20 phrases in 10 subjects
Cables and cable production1
Cement1
Ecology1
Electronics1
Energy industry1
Makarov3
Oil / petroleum2
Oil processing plants6
Polymers2
Technology2