The results showed that the compound microorganism preparation improved water quality and decreased significantly the ammonia nitrogen in water.
试验表明，复合微生物制剂对改善水质，降低水体中的氨氮具有明显作用。
As a kind of environmental pollution the photochemical smog is formed by the secondary pollution, such as the ozone, the aldehyde class and the oxygen ethanoic acid nitric ether, which are produced by a series of complex reactions of the primary pollutants, the hydrocarbon and the nitrogen oxygen compound.
光化学烟雾是一种环境污染，在化学教材的氮族元素一章中，提到了光化学烟雾这一污染种类，但教材上讲的很笼统，只是简单的说NO和NO2是光化学烟雾污染的主要因素，并没有提到它的成因、危害、事例以及控制的方法。
Guards against the facture and the correlation stipulation based on the air pollution defines, the air pollutant may divide into four big projects, respectively be the gaseity pollutant (including sulfur oxide compound bucket carbon monoxide, nitrogen oxide compound, hydrocarbon, chlorine, gasified hydrogen, fluoride, chlorhydrocarbon and so on), the granular pollutant (including suspended particulate matter, golden bureau coal smoke, black smoke, acid fog, falls dust and so on), two pollutant (refers to pollutant to pass through photochemical reaction in air to have pollution again, including photochemistry fog, photochemistry high oxide compound and so on) and odor matter (including chlorine, hydrogen sulfide, curing methyl, sulfur alcohol type, methyl amines) and so on.
依据空气污染防制法及相关规定所定义，空气污染物可分为四大项目，分别为气状污染物（包括硫氧化物勺一氧化碳、氮氧化物、碳氢化合物、氯气、气化氢、氟化物、氯化烃等）、粒状污染物(包括悬浮微粒、金局煤烟、黑烟、酸雾、落尘等)、二次污染物（指污染物在空气中再经光化学反应而产生之污染，包括光化学雾、光化学性高氧化物等）及恶臭物质(包括氯气、硫化氢、硫化甲基、硫醇类、甲基胺类)等。
Both of them could reduce the organic compound and nitrogen-containing materials in the acrylic fiber wastewater significantly.
二者都使得腈纶废水中的有机物质和氮类物质大幅度降低。
This monograph specializes in carbon, nitrogen, sulfur and phosphorus cycling in compound ecosystem with five chapters.
本书是论述复合生态系统碳、氮、硫、磷四种元素循环的专著。
Oxidation products of nitrogen compound can decompose peroxide.
甲基苄基硫醚具有很高的对氧活性，氧化生成砜。
Compared with compound amino acid, compound branch chain amino acid injection can reduce proteolysis, correct negative nitrogen balance and promote wound healing.
胃癌根治术后使用富含支链氨基酸的注射液可减少蛋白分解，尽快改善负氮平衡，并促进伤口愈合。
Yi of the Group for the large state-owned chemical enterprise, the existing original value of fixed assets 450, 640, 000 yuan, 3, 000 employees, annual production capacity of 300, 000 tons of nitrogen synthesis, 500, 000 tons of urea, 40, 000 tons refined methanol, 130, 000 tons of compound fertilizer, weaving 12000000 BAG, 7000 tons of potassium permanganate, potassium hydroxide 12, 000 tons, the annual sales income of 550 million yuan.
峄化集团为国有大型化工企业，现有固定资产原值45064万元，职工3000人，年生产能力合成氮30万吨，尿素50万吨，精甲醇4万吨，复合肥13万吨，编织袋1200万条，高锰酸钾7000吨，氢氧化钾12000吨，年实现销售收入5.5亿元。
In one embodiment, the invention is a system for initiating free radical polymerization comprising: a in one part, one or more amido-borate compounds containing one or more anionic amido-borate moieties comprising an organoborate wherein the boron atom is bonded to a nitrogen atom of ammonia or an organic compound containing one or more nitrogen atoms, such as a hydrocarbyl amine, a hydrocarbyl polyamine, or an aromatic heterocycle containing one or more nitrogen atoms and optionally containing one or more heteroatoms or heteroatom containing functional moieties, and one or more cationic counter ions and b in a second part, a liberating compound which reacts with the nitrogen atom bound to the boron atom upon contact with the amido-borate to form an organoborane radical.
在一个实施方案中，本发明是引发自由基聚合的体系，包括：a在一个部分中，一种或多种含有一个或多个包含有机硼酸根的阴离子酰氨基-硼酸盐部分和一个或多个阳离子抗衡离子的酰氨基-硼酸盐化合物，其中的硼原子键合到氨的氮原子或含一个或多个氮原子的有机化合物，例如烃基胺、烃基聚胺或含一个或多个氮原子和任选含一个或多个杂原子或含杂原子的官能部分的芳族杂环的氮原子上，和b在第二部分中，在与酰氨基-硼酸盐接触时与键合到硼原子上的氮原子反应形成有机硼烷基团的释放化合物。
The compound fertilizer of 20 days of every or so rare fluid fertilizer that apply become thoroughly decomposed or Potassium of low nitrogen Gao Lin.
每 20天左右施一次腐熟的稀薄液肥或低氮高磷钾的复合肥。
The latest chemical product prices fell, demand has not really visible downstream, the short-term rise in oil prices in the channel, in which phase fluctuations, we continue to be optimistic about with anti-cyclical businesses and new materials, anti-cyclical embodies New Chemical Materials decrease in prices of raw materials is less than the decrease in prices of raw materials at the same time, the cost shift ability, to maintain price stability; civil explosive materials companies fell as a result, prices, countries can enjoy the benefits of; domestic urea production capacity excess of export disruption, high product costs, industry consolidation is inevitable, so concerned about the urea industry with technical advantages and cost advantages of urea enterprises: China Shandong Hengsheng; Although the overall situation of excess nitrogen, but because of the regional characteristics of the domestic fertilizer domestic part of the region will be in a high urea prices, the relevant listed companies will benefit from, such as the Liao Tung Chemical; compound assets as light industry, with the weak cyclical characteristics, the stability of industry profitability, industry leaders concerned about the compound: para Tian shares; potash by the international market, short-term decline of domestic potash fertilizer prices would have difficulty, Salt Lake Potash in 2009 will be guaranteed a profit, Salt Lake Potash concern.
最新化工产品价格出现下跌，可见下游需求并未真正起来，短期石油价格处在上升通道，在这种上下波动阶段，我们继续看好具有抗周期性的新材料企业，抗周期性体现了化工新材料的产品价格下降幅度小于原料的下降幅度，在原料价格上涨同时，成本转嫁能力较强，价格维持稳定；民爆企业由于原料下跌，价格上涨，可以享受国家指导价的益处；由于国内尿素产能过剩，出口受阻，产品成本居高不下，行业整合在所难免，因而关注尿素行业内具有技术优势和成本优势的尿素企业：华鲁恒升；虽然氮肥全局过剩，但由于国内化肥的区域性特征，国内部分区域尿素价格将处于高位，相关上市公司将因此受益，如辽通化工；复混肥作为轻资产行业，具有弱周期性特点，行业盈利稳定，关注复混肥行业龙头：芭田股份；钾肥受制于国际市场，短期内国内钾肥价格恐难下跌，09年盐湖钾肥盈利将会有保证，关注盐湖钾肥。
The analyses of abundance of pyrrole nitrogen compound, absolute size and relative change of isomer parameter in nitrogen commands of reservoir bitumen, etc.
探讨了川西南部平落坝—邛西地区储层沥青中吡咯类化合物的分布特征和该区须二段储层中天然气的运移方向，指出：平落坝—邛西构造带储层沥青含氮化合物中吡咯类化合物的丰度、异构体参数的绝对大小与相对变化说明该构造平面上运移效应主要是对平落坝地区的吡咯类分布具有控制作用，总体表现出自西向东运移的趋势，而在整个平落坝—邛西构造带，这种控制并不明显；该构造须二段气藏具有原地或近源性，其天然气以大范围内的垂向运移为主。
Brief Introduction】 Applicable to a variety of crops on the demand for nitrogen and phosphorus elements, is a quick water-soluble compound, dissolved solids less available phosphorus (AP2O5) and total nitrogen content ratio is more appropriate (about 2.56:1), high concentrations of phosphate and compound fertilizer is the most important species.
适用于各种农作物对氮磷元素的需求，是一种水溶性速效复合肥，溶解后固形物较少，有效磷（ AP2O5）与总氮含量的比例较适宜（约2.56：1），是高浓度磷复肥最主要的品种。
We mainly studied effects of different kinds of nitrogen source, C/N value and EM concentration on fermenting temperature; studied the chemical and physical characters of different nitrogen source and its various settings during maize stalk fermenting; we also studied the effects of compound substrates mixing substrate which is fermented in different kinds of nitrogen source with roseite in the ratio of 6:4 on morphological and physiological character of tomato seeding.
研究了不同氮源种类、不同C/N比值、不同EM浓度对温度的影响；在C/N比为30：1的条件下，研究了不同氮源及配比对玉米秸粉发酵中理化性状的影响；以不同氮源及配比发酵的玉米秸基质：蛭石=6：4配制的复合基质，进行了番茄育苗试验，研究了复合基质对番茄苗期形态和生理指标的影响。
Of, derived from, or containing nitrogen, especially in a valence state lower than that in a comparable nitric compound.
含氮的氮的，由氮衍生的或含氮的，尤指在其化合价低于其相应的硝酸化合物的情况下
Compound aquatic ecosystem of macrophytes and microorganisms; bacterioplankton; rhizosphere bacteria; change of total number of bacteria; removal capacity of nitrogen and phosphorus
实验以常见水生漂浮植物荇菜为实验材料，设计总磷和总氮两个浓度梯度，每个梯度各设5个浓度，研究水体氮磷营养物质浓度和细菌数量的变化。
All above, metabolism of carbon, nitrogen, nucleic acid all effect the cabbage vernalization, no whether prematurity variety or medmaturity variety have the same tendency, but different variety have the different level of carbonhydrate, nitrogen compound, nucleic acid compound, so we argued that the metabolism of carbon, nitrogen, nucleic acid can not control cabbage vernalization absolutely, but also controlled by its C/N, RNA/DNA.
综上所述，碳、氮及核酸代谢三者共同作用影响甘蓝通过春化，不同熟性甘蓝低温春化过程中碳、氮及核酸代谢均表现出一致的变化趋势，但完成春化作用时碳水化合物、氮化合物、核酸类化合物的含量不同，因此我们以为碳、氮、核酸代谢本身并不能尽对制约春化作用，同时也受其体内C/N、RNA/DNA所控制。
Pyrimidine: Any of a class of heterocyclic compound s with a ring structure of four carbon and two nitrogen atoms.
嘧啶：具有环状结构(由4个碳原子和2个氮原子组成)的一类杂环化合物。
F. -2 had a little compound of nitrogen.
G.F。-2是含有少量氮类化合物的多糖缀合物。
But had negative compound effect if their level were too high.5 Regressive analysis showed that the optimum compose of nitrogen, potassium and magnesium on yield and fecula contents of pumpkin was 267.8mg/L, 408 mg/L, 51.48 mg/L respectively.
计算机综合模拟寻优结果表明：当氮、钾、镁的元素含量分别为267.8mg/L、408mg/L、51.48mg/L，南瓜单果质量和淀粉含量最高。