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还原 hái yuán
phys.	اختزال تفاعل كيميائى

还原: 30 phrases in 15 subjects

Agriculture	3
Bacteriology	1
Economy	4
Environment	2
Food industry	1
Food service and catering	2
Genetics	1
Medical	4
Microbiology	1
Milk production	1
Packaging	1
Piezoelectric crystals	5
Soil science	1
Thermal Energy	2
United Nations	1