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to phrases
biological denitrification
agric.
生物反硝化作用
;
生物脱氨作用
tech.
生物脱氮
(作用)
;
生物的反硝化作用
water.res., ecol.
生物脱氮
biological denitrification:
11 phrases
in 3 subjects
Chemistry
1
Technology
6
Water resources
4
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