We need to cut nitrate levels in water.
我们需要降低水中的硝酸盐含量。
High levels of nitrate occur in the Midwest because of the heavy use of fertilizers.
因为大量使用化肥，中西部地区的硝酸盐含量很高。
Even nitrogen, which is a gas in its elemental state, is normally absorbed from the soil as nitrate ions.
即使是元素状态为气体的氮，也通常作为硝酸根离子从土壤中被吸收。
The peroxyacetyl nitrate is an important atmospheric pollutant.
过氧乙酰硝酸盐是一种重要的大气污染物。
Dimethylpyrazine reacted with phenylacetic acid, silver nitrate and ammonium persulfate.
二甲基吡嗪与苯乙酸，硝酸银和过硫酸铵反应。
It has the abilities such as starch hydrolysis, nitrate reduction, milk peptonization and H2S production.
它能水解淀粉，进行硝酸盐还原，能使牛奶胨化，产生硫化氢。
Ammonium nitrate and powdered aluminum.
硝酸铵加铝粉。
The final reduction product of nitrate nitrogen is ammonia nitrogen.
硝酸盐氮的最终还原产物为氨氮。
Then anaerobic bacteria take that nitrate and turn it into harmless nitrogen gas.
最后厌氧菌将硝酸盐转化成无害的气体氮。
So I have here silver nitrate and there I have sodium chloride and I mix the two.
好了，这是硝酸银，而这是氯化钠，我将两者混合。
The results show that naphthenic nitrate is a valuable additive in practical use.
研究结果表明，脂环族硝酸酯作为柴油十六烷值改进剂具有很高的使用价值。
Silver nitrate is an important laboratory reagent for performing chemical analyses.
硝酸银是进行化学分析的一种重要的实验试剂。
Some phytoplankton can fix nitrogen and can grow in areas where nitrate concentrations are low.
一些浮游植物可以通过固氮在硝酸盐含量较低的地区生长。
He says farmers may be able to better control the amount of nitrate fertilizer they put on fields.
他说，农民们也许能够更好地控制他们投放到田地里的氮肥总量。
Biologic denitrification is one of the most popular methods to remove nitrite and nitrate from water.
生物反硝化法是解决水体中硝氮污染问题的主要方法之一。
The scattered blue particles are cupric nitrate and zinc nitrate, a byproduct of the chemical reaction.
略带蓝色的部分是硝酸铜和硝酸锌，一种化学反应后的产物。
Soil nitrate leaching not only causes the loss of fertilizer, but also brings about serious environmental problems.
土壤硝态氮的淋失不但造成肥料的损失，而且产生严重的环境问题。
Caution Alcohol intake may enhance nitrate effects and occasionally induce hypotension with subsequent impairment of reactivity.
注意：饮酒可增强硝酸盐的作用、偶尔引起低血压，继而损害反应力。
Groundwater nitrate pollution, as a global problem, is not only an environmental issue but also an economic and human health problem.
地下水中的硝酸盐污染具有全球性，这不仅是一个环境问题，也是一个经济和人类健康问题。
Field experiment was conducted for studying the effect of nitrogen forms on the yield of Chinese cabbage and the accumulation of nitrate.
通过田间试验研究了不同形态氮肥对大白菜产量及硝酸盐累积的影响。
Low oxygen levels encourage the growth of bacteria that destroy nitrate - a vital nutrient for the ocean's microscopic plants, or phytoplankton.
低含氧量导致细菌滋长，这些细菌会破坏硝酸盐——海洋微生物及浮游植物的重要营养物质之一。
Phytoplankton, like land plants, require nutrients such as nitrate, phosphate, silicate, and calcium at various levels depending on the species.
浮游植物与陆地植物一样，根据不同种类需要各级的硝酸盐、磷酸盐、硅酸盐以及钙等营养物质。
Air pollution factors include sulfate or nitrate second particles derived from gas-to-particle transformation as well as original particles.
影响能见度的空气污染因子，不仅包括一次源，还应包括经由气-粒转化化学反应而产生的硫酸盐、硝酸盐等二次污染粒子。
So he and his colleagues tested a range of chemicals found in fertilizers, including nitrate, ammonium and urea, to determine their effects on the algae.
他和同事们研究了肥料中的一系列化学物质，包括硝酸盐，铵和尿素，观察他们对海藻的影响。
The research team now hopes to conduct further studies to try to understand in more detail the effects of nitrate-rich foods on exercise physiology.
现在研究小组希望通过进一步研究来详细揭示富含硝酸盐的食物对运动生理的影响。
This article summarizes the progress in the study on the mechanism of nitrate accumulation and adjustment methods for vegetable over the last 20 years.
综述近20年来蔬菜硝酸盐累积机理及其控制措施的研究情况。
During the day, energy is stored by heating up large tanks of molten salt composed of a mixture of 60 percent potassium nitrate and 40 percent sodium nitrate.
白天，能量通过加热庞大容器里的熔融盐保存起来，熔融盐由60%的硝酸钾和40%的硝酸钠组成。
During the day, energy is stored by heating up large tanks of molten salt composed of a mixture of 60 percent potassium nitrate and 40 percent sodium nitrate.
白天，能量通过加热庞大容器里的熔融盐保存起来，熔融盐由60%的硝酸钾和40%的硝酸钠组成。
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