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chemical fertilizer wastewater
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chemical fertilizer wastewater
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污水来源
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chemical fertilizer wastewater
化肥污水
在化肥生产过程中合成氨和尿素生产时产生的污水。化肥是利用化学方法生产的含有氮、磷、钾等元素的肥料统称。
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podocarpic acid
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Podocarpus tree in Yaojinshan Temple of Pingxiang City
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podophyllotoxin (PPT)
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pod propulsion technology
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poem affected by external things
Poem Calligraphy by Wu Ju
Poem Collections of Fifty Poets in Tang Dynasty
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Poem for Wife
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Poem of Du Fu by Zhang Jizhi
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