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The results of N/P ratio test show that the removal of nitrogen and phosphorus by immobilized Chlorella is influenced by N/P ratio.

氮磷比试验结果表明,固定化小球藻对氮磷的去除受氮磷比的影响。

In the dyestuff production process, such as AZO pigments of diazotization, it controls temperature technical by adding ice, which can be effective to control the diazonium salt decomposition in coupling reaction.

在颜料生产过程中,例如偶氮颜料的重氮化反应,偶合反应中,采用加冰控温工艺,可有效控制重氮盐的分解。

It is seen from Fig.2 that the H concentration in the SiNx:H decreases upon annealing, however H may also effuse out towards the atmosphere.

经查验后的h分布在结构退火温度高达550 ℃,这是可见的H渗透在Si衬底上是增加相比,以作为沉积样本,因此,这是表示, H是发表对衬底上,无论是直接从A - Si : H薄膜或从覆氮化硅:每小时它是从图2表示的H浓度在氮化硅: H的跌幅后,退火,但h也可能涌出了对大气中。

Persistent photoconductivity and recombination mechanism were investigated in an intrinsic GaN at room temperature with incident photon wavelength from 360 nm to 377 nm.

通过对室温下的本征氮化镓材料进行不同波长(360 nm~377 nm)的光照,分析了本征氮化镓中的持续光电导及其复合机制。

In order to find biologically active urea compounds,seven new N-[5-(3-pyridyl)-1,3,4-thiadiazol-2-yl]-N'- urea derivatives were synthesized by the reaction of 2-amino-5-(3-pyridyl)-1,3,4-thiadiazole with aroylazides,which were prepared starting from carboxylic acids,ethyl chloroformate and sodium azide by one-pot procedure.

为了寻找高生物活性的脲类化合物,通过2-氨基-5-(3-吡啶基)-1,3,4-噻二唑与酰基叠氮化物反应,设计合成了7个新的N-[5-(3-吡啶基)-1,3,4-噻二唑-2-基]-N'-取代苯基脲,其中芳酰基叠氮化物是以芳酸、氯甲酸乙酯、叠氮化钠为起始原料采用&一锅法&所制得。

The using instance of mould is complex, its always abated by abrasion, fatigue, or bad hot stability, and so on. To extend the longevity of mould, people try to use general heat treatment and other surface treatment, especially the gas nitriding, because of its inherent excellence, such as wearable、incohesive、co-fatigue、stand against permanence intensity and causticity under changeable load and so on, also the gas nitriding facility is cheapness, so the gas nitriding technics is abroad used.

为了提高模具的使用寿命,人们除了采用常规热处理外,各种表面强化技术也被广泛应用,特别是气体氮化工艺,因其能显著提高工件的耐磨性、抗擦伤性能、抗粘和性能、接触疲劳性能、冲击或交变载荷下的持久强度和耐腐蚀性能等,而且气体氮化工艺设备投资、生产成本低,更是被广泛关注。

The influences of preparing conditions and contents of Fe on the properties of Si3N4, such as the nitridation rate, the content of α–Si3N4, the powder size, the microstructure and so on, were studied.

着重讨论了催化剂含量和氮化中的工艺条件对于粉体的氮化率、粒径、形貌和相含量等方面的影响。

The results show that a certain degree of increase of SiC content was helpful for nitrification of TiSi2, and SiC particles were nitrified during the SHS p.

结果表明:SiC在一定范围内增加有利于TiSi2的氮化,且含40%SiC和50%SiC的压坯在燃烧合成过程中发生了SiC的氮化反应。

The results show that a certain degree of increase of SiC content was helpful for nitrification of TiSi2, and SiC particles were nitrified during the SHS process in the samples of green compacts with 40% SiC and 50% SiC diluent.

结果表明:SiC在一定范围内增加有利于TiSi2的氮化,且含40%SiC和50%SIC的压坯在燃烧合成过程中发生了SiC的氮化反应。

In this research, we compare the nanostructures and optical characterizations of three InGaN/GaN multiple quantum well light-emitting diode samples with different structures.

在本研究的第一部份中,我们比较三片具有不同结构的氮化铟镓/氮化镓多重量子井样品的奈米结构以及光学特性。

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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。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。