Sulfate: Any of numerous inorganic and organic chemical compounds related to sulfuric acid (H2SO4).

硫酸酯：任何与硫酸(H2SO4)有关的化合物。

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Sulfate: Any of numerous inorganic and organic chemical compounds related to sulfuric acid (H2SO4).

硫酸盐；硫酸酯：任何与硫酸(H2SO4)有关的化合物。

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According to the study agriculture is responsible for 43.7% of the nation's chemical oxygen demand (the main measure of organic compounds in water) 67% of phosphorus and 57% of nitrogen discharges.

研究表明，水质43.7%的化学需氧量(测量水质有机化合物的主要指标)、67%的含磷量和57%含氮量应归咎于农业。

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We know from scientific studies on Earth that, given the right chemical elements and some energy, organic compounds form.

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UTC's solution: Pass the return air through an aluminum filter sprayed with titanium dioxide that, hit with ultraviolet rays, sets off a chemical reaction that breaks down nasty organic compounds like benzene and formaldehyde into carbon dioxide and water.

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Others, like Michael North, Professor of Organic Chemistry at Newcastle University in the UK, are looking at transforming CO2 into useful chemical compounds called cyclic carbonates for industrial use.

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