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trace quantities of nh3 in the exhaust gas from a cement kiln gas probably result from the pyrolysis of nitrogenous compounds in fossil fuels and raw materials.
水泥窑废气中含有少量氨气,可能是化石燃料和生料中含氮化合物高温分解的结果。
further, excessive use of nitrogenous fertilizers enhances the concentration of nitrates in the local groundwater aquifers, and in drain water thus restricting its use.
此外过量使用氮肥加大了当地地下蓄水层和排放水中的硝浓度,因而限制了它的使用。
anthropogenic emissions of nitrous oxide originate primarily from the agricultural sector, particularly the use of inorganic nitrogenous fertilizers, followed by fuel combustion in energy transformation and transport, and the industrial processes sector.
81. 人为的一氧化二氮排放主要源于农业部门,尤其是无机氮化肥的使用,其次是能源转换和运输以及工业加工部门的燃料燃烧。
while they in air-breathing animals may be accumulated to a larger degree due to slow respiratory elimination and slow elimination in urine and nitrogenous wastes explained by a high log octanol-air partition coefficient (log koa) of 13.1 ( >6).
此类物质在呼吸空气的动物体内的累积程度更高,原因是通过呼吸过程、尿液及氮废物消除此类物质的速度较为缓慢,辛醇-空气分配系数对数为13.1(大于6)可以解释这一现象。