硝化了的

Amino-6-nitrobenzodifuroxan was prepared through a three-step reaction from starting material 3, 5-dinitrobenzoic acid:(1)3, 5-dinitroaniline (1) was synthesized from the reaction of DNBA and hydrazoic acid in inert solvent 1, 2-dichioroethane through Schmidt rearrangement with yield of 89.6%;(2) 1 was subjected to nitration to prepare pentanitroaniline (2) with yield of 51.1%;(3) The title compound was prepared from 2 and sodium azide in acetic acid through denitrogenation and then Schmidt rearrangement with yield of 86.8%, m.p.204℃～206℃.

以3，5-二硝基苯甲酸为原料经过3步反应合成了7-氨基6-硝基苯并二氧化吠咱：第1步反应，在二氯乙烷惰性溶剂中，DNBA与叠氮酸反应并发生Schmidt重排反应生成3，5-二硝基苯胺(1)，产率89.6%；第2步反应，1在含100%硫酸的硝硫混酸中硝化生成五硝基苯胺(2)，产率51.1%；第3步反应，2与叠氮酸反应，不经分离直接进行热解脱氮、Schmidt重排反应，得到目标化合物， m.p.204℃~ 206℃，产率86.8%。

Since there exists some disadvantages such as poor mechanic properties and much higher burning rate pressure exponents (?1) in the fundamental formulations, this work is devoted to the improvements of combustion characteristics and mechanic properties of LOVA propellants. The effects of the crystal shape, size and contents of nitroamine particles, the types of binder, plasticizer and surface-active agents and the contents of NC on combustion performance are studied by closed bomb tests. In the mechanic properties tests, the effects of the types of binders, plasticizers and solid fillers, the interaction between binders and solid fillers and technological procedures on propellant mechanic properties are researched.

针对基础配方具有燃速压力指数远大于1、力学性能差等特点，采用密闭爆发器等试验手段，研究了诸如硝胺粒径、硝胺晶体形状、硝胺含量、粘结剂、增塑剂、硝化棉含量及表面活性剂等因素对燃烧性能的影响；采用抗沖、抗压静态试验方法，对粘结剂、增塑剂、固体填料、粘结剂与固体填料之间的相互作用及工艺条件与力学性能之间的关系进行了研究，提出了改善低易损性发射药燃烧性能和力学性能的技术途径。

Amino 5 nitrophenol was synthesized using o aminophenol and urea as raw materials through cyclocondensation ,nitration and alkaline hydrolysis in turn.

以邻氨基苯酚和尿素为原料，对环合、硝化、碱性水解的传统工艺进行改进，合成了 2 氨基 5 硝基苯酚。

The amounts of microorganisms in a new denitrification and phosphorus removing integration equipment in its initial stage of running was measured and the change of total bacteria ,Molds,nitrobacteria, Actinomycetes, Nitrobacteria ,Nitrosobacteria and Nitrate reducing bacteria in different times were also studied.

对反硝化聚磷除磷脱氮污水处理新工艺运行初期系统中的微生物数量进行了跟踪检测，并对细菌总数、霉菌、放线菌、硝化细菌、亚硝化细菌、反硝化细菌在不同日期的数量变化进行了研

This process put the anaerobic tank and secondary settlings and the recirculation of nitrified wastewater and the recirculation of sludge and Orbal oxidation ditch inyto together at the basement of Orbal oxidation ditch and the secondary settlings which the inlet and outlet were both circumjacent. This process had many advantages such as the small taking-up area and lower investment and consuming of energy and strong adaptability to raw influent.

介绍了一种新型一体化Orbal氧化沟，该池以Orbal氧化沟和周进周出辐流二沉池为基础，将厌氧池、二沉池、硝化液回流、污泥回流系统与Orbal氧化沟组合为一体，具有占地面积小、投资省、能耗低、原水适应能力强、运行管理更方便的突出优点。

Jean Jacques Theophile Schloesing proves that nitrification is a biological process in the soil by using chloroform vapors to inhibit the production of nitrate.

Jean Jacques Theophile Schloesing通过使用氯仿蒸汽抑制了硝酸盐的生成，从而证明了硝化作用是土壤中的一个生物学作用。

In this paper, SBR and two-sludge SBR were used to study on effects of environment on denitrifying phosphorus removal.

中文摘要：本论文分别采用SBR和双污泥SBR系统研究了环境条件变化对反硝化聚磷的影响。

A denitrifying dephosphatation process was operated in this study.

研究了反硝化除磷工艺的运行效果。

The results showed that C/N ratio had great effect on denitrifying dephosphatation.

在厌氧/缺氧(A2)SBR反应器中考察了C/N比对反硝化除磷效果的影响。

By controlling the nitrate concentration in the anoxic stage,the methods and effects of inducing Denitrifying Phosphate Accumulating Organisms were studied.

通过控制缺氧段硝酸盐浓度，研究了反硝化聚磷菌的诱导方法及效果。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。