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pollution sources
desert. 污染源
pollution source
met. 污染源
pollution sources: 332 phrases in 20 subjects
Business2
Desert science1
Earth sciences16
Ecology32
Engineering geology9
Environment2
Hydroelectric power stations2
International trade3
Life sciences1
Metallurgy2
Nursing1
Oil / petroleum7
Rail transport1
Space2
Sports1
Technology180
Textile industry2
United Nations8
Water resources51
Wind Energy9

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