氮的

The paper presents the principle and methods of the rapid determination of the concentration of ammonia in sewage and discusses some problems,such as the dosage of the Napierian regent,the stability of solution.

试制了快速测定污水中氨氮的试剂盒，测量范围在0~2.0 mg/L，并对纳氏试剂的用量、显色溶液的稳定性等有关问题进行探讨。

The Syntheses of a High Temperature Gellant in Acid Stimulation Using Invert Emulsion Polymerization;2. Aiming at the special oxidizability of NTO,three different gellant s were chosen which could form gel with NTO,and their rheologic properties were studied.

针对四氧化二氮的特殊氧化性，筛选了三种不同胶凝剂与NTO形成凝胶，对其流变性能进行研究，并结合发动机试验、限流圈试验、发动机头部液流试验，验证了其与偏二甲肼凝胶组成的双组元推进剂用于凝胶发动机试验的可行性。

Thirdly, selective catalytic reduction of NO with propene over Cu ion-exchanged Al-MCM-41 has been studied.

在氮氧化物催化还原的活性评价实验中，考察了铜离子交换的Al-MCM-41对丙烯选择还原一氧化氮的催化活性。

This generator adopts PSA transforming absorpion,which uses carbon molecule to separate Oxygen and Nitrogen from air. It transfers compressed air,which is originated from air source, into absovbing untis formed by two tower after oil removing, drying, filtering, purifying of the air. The compessedair generates Nitrogen when it is transformingly absorbed in one tower, then it is sent to another tower for regeneration. It alternately circulates between two towers, which can unceasing achieve 98%-99.9% of pure and cheap Nitrogen..

本设备采用PSA变压吸附原理，利用碳分子筛在压力变化时具有分离空气中氮的能力，以空气为原料，将压缩空气经除油、干燥、过滤等净化处理后，送入双塔组成的吸附组件，压缩空气在一塔内经加压吸附后产生氮气，而另一塔在解吸再生，两塔交替循环，即可不断地得到纯度为98－99.9%的廉价氮气。

Chapter 1 describes the synthesis and characterization of a novel tridentate benzamidinato ligand[2SiNMe2](Si=linking group)la.

第一章根据含氮的胺类化合物的良好的反应性和配位性。

In order to prove the anti-fatigue function, we do the experiment of mouse swimming with a heavy burden, the test of lactic acid, the test of lactic acid deoxidizing enzyme and the test of serum urea nitrogen respectively.

为正实抗疲劳功能，分别作了金匮回生液小鼠负重游泳实验，乳酸的测定，乳酸脱氧酶的测定，血清尿素氮的测定等四个项目试验。

First, pure boron metal was evaporated by an electron beam in a hared plasma of nitrogen and argon, then c-BN films grow on Si substrate.

对沉积后的c－BN膜，在充入高纯氮的条件下，原位进行消应力退火处理以提高膜与基体的结合力。

It is found that before the pearlitic and upper-bainitic reactions, a pro-cutectoid orpro-bainitic phase is precipitated along the austenite grain boundaries in the cyanidedsamples; and it is thought that this is likely a nitrogen-bearing phase which provides thephase boundary effect for the nucleation of the reactions and impoverishes the parentaustenite in alloy content, thus accelerating the transformation of austenite.

实验中发现，在珠光体及上贝茵体形成之前，氰化试样中均有一种过剩相沿奥氏体晶粒边界析出。这种先析相可能是一种含氮的化合物，其析出为珠光体及上贝茵体的非自发形核提供了现成的有利界面，并使奥氏体合金化程度降低，因而加速了转变。

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。

NHE is assigned to the reduction of heme ligated NO.

的峰来自于与血红蛋白键合的一氧化氮的还原。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。