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pollution source
met. 污染源
pollution source
: 237 phrases in 18 subjects
Desert science1
Earth sciences15
Ecology23
Engineering geology7
Environment2
Hydroelectric power stations2
International trade3
Life sciences1
Metallurgy2
Nursing1
Oil / petroleum4
Space2
Sports1
Technology116
Textile industry2
United Nations1
Water resources45
Wind Energy9

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