When treating triamiphos waste water by anaerobic fluidized bed process the NH3-N content in raw waste water must be reduced and nutrition ratio be adjusted.
采用厌氧流化床工艺处理三唑磷农药废水，必须降低原水中NH_3—N含量，调整营养比例。
In NH3-N monitoring application of industrial waste water Na's reagent behaves simple operation and high sensitivity.
在工业废水氨氮监测中应用的纳氏试剂法具有操作简便、灵敏度高的特点。
At present, using traditional vapor-liquid mass transferring to recover NH3-N from waste water is one of the most reliable techniques.
利用传统的汽液传质方法将氨氮从废水中分离出来并加以利用的方法，仍然是目前最可靠最成熟的氨氮分离方法之一。
N release pattern from livestock waste compost and compost pellet was studied with incubation method in lab. and buried glass filter paper method in the field.
本文采用室内培养法和田间埋设玻璃滤纸包法研究了粉状畜禽粪便堆肥和颗粒堆肥的养分释放。
N-octyl bromide was synthesized by hydrobromic method in which took n-octanol and industrial waste hydrobromic acid (48%) as materials, concentrated sulfuric acid as a catalyst.
本实验采用氢溴酸法，用浓硫酸作催化剂，以正辛醇、工业废氢溴酸(48%)及浓硫酸为原料，合成1 -溴代正辛烷。
N-octyl bromide was synthesized by hydrobromic method in which took n-octanol and industrial waste hydrobromic acid (48%) as materials, concentrated sulfuric acid as a catalyst.
本实验采用氢溴酸法，用浓硫酸作催化剂，以正辛醇、工业废氢溴酸(48%)及浓硫酸为原料，合成1 -溴代正辛烷。
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