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desulphurisation n
gen.	脱〔去，除〕硫
met.	脱硫; 去硫; 除硫
desulphurisation The removal of sulphur, as from molten metals or petroleum oil. Sulphur residues in fuels end up as sulphur dioxide when the fuel is burned causing acid rain n
environ.	脱硫作用 (从熔融金属或石油中移除硫。 残留在燃料中硫在燃烧后会变为二氧化硫，造成酸雨。)

desulphurisation : 2 phrases in 2 subjects

Ecology	1
Environment	1