乙炔

It also can use dissociation and control effect to eliminate secondary hazards and then realize system...

示例中运用该模型对乙炔安全水封爆炸事故进行了危险辨识，证明了上述结论的正确性。

Effect of power and proportion of gases for the DLC films were studied.

考察了乙炔比例、放电功率等沉积参数对DLC膜的影响。

According to analyse the safe performance of double-barrelled middle-level pressure acetylene generator in the extrusion type to the dipeptide, and carry on the improvement of structure, the object of the safe usage was attained.

摘要对双挤压式中压乙炔发生器的安全性能做了分析，并进行结构改进，解决了使用中的安全隐患，达到安全使用的目的。

As a result, the yield of acetylene will exceed its concentration in equilibrium system.

考虑C_2H官能团的复合作用，根据乙炔浓度最大化的原则，本文通过数值模拟选定最佳的反应条件为C／H=1／2、反应温度3200—4100K。

A nonlinear regression is adopted to analyze the changes of plasma vitellogenin concentration in crucian carp via the environmental pollutant exposure concentration, and the concentration-response relationship is determined for the single chemical of estradiol (E2), ethynylestradiol (EE2), bisphenol A, 4-tert-octylphenol, and that of the mixed compounds at equipotent concentrations, the mixture being tested using a fixed-ratio design.

通过对鲫鱼血浆卵黄蛋白原含量的相对变化和暴露浓度的非线性回归分析得出17α-乙炔基雌二醇(EE2)、17β-雌二醇(E2)、双酚A、辛基苯酚及其等毒性固定浓度比例混合物产生雌激素效应的剂量－反应关系；应用相加作用数学模型根据单个化合物的数据预测混合物效应。

A gas chromatographic-mass spectrometric method for the simultaneous determination of environmental estrogens (including 4-nonylphenol, bisphenol A,diethylstilbestrol and 17α-ethinylestradiol) and endogenous estrogens (including 17α-estradiol, 17β-estradiol, estriol and estrone) in urine and bed mud is reported.

报道了尿及河底泥中环境雌激素(壬基酚、双酚A、己烯雌酚、17α-乙炔基雌二醇)和内源性雌激素(17α-雌二醇、17β-雌二醇、雌三醇、雌酮)的气相色谱-质谱测定法。

To investigate the pollution levels, occurrence and distribution of estrogens, six estrogens in the surface sediments of Wenyuhe River were analyzed quantitatively by GC/MS following ultrasonicated extraction including diethylstilbestrol, estrone(E1),β-estradiol(E2), 17α-ethynylestradiol(EE2), estriol(E3), and β-estradiol 17-valerate. Six estrogen concentrations ranged from 0.39-36.6ng/g and the mean concentration was 10.2ng/g.

为了调查温榆河沉积物中雌激素物质的污染状况，采用超声萃取、GC/MS法研究了6种常用雌激素（包括己烯雌酚DES、雌酮E1、雌二醇E2、乙炔基雌二醇EE2、雌三醇E3和戊酸雌二醇EV）在北京温榆河上游及干流表层沉积物中的含量水平，并对其分布及来源情况进行了分析。

They have close relationship as the former may provide new ideas and approaches for the later, while the later may be the simulation for the former and gives it helps in degradation products identification and mechanism explanation. It is necessary to choose a suitable system, which has high potential of treating EDs and close relationship to the natural environment, to combine the researches in the two aspects. Our group has been engaged in researches on the photochemical properties and application to water pollution control of different ferric species including Fe -OH complexes, Fe -polycarboxylate complexes, Ferric oxides and Fe -humic acid complexes. Fe -oxalate complexes system has higher efficiency than the other ferric species systems in photooxidation and degradation of organic compounds. This thesis is focused on the photodegradation of nine EDs estradiol (E2), estrone (E1), 17α-ethynyl estradiol (EE2), diethylstilbestrol , bisphenol-A , 4-Nonylphenol , 4-Octylphenol , di-n-butyl phthalate , and di (2-ethylhexyl) phthalate .

因此从处理效率和环境化学意义两方面考虑，结合本课题组在不同铁形态（包括Fe-OH配合物、Fe-多羧酸配合物、Fe氧化物、Fe-腐殖酸配合物等）的光化学特性及其在水污染控制中的应用方面较系统的研究工作基础，本论文选择了四类共9种典型的内分泌干扰物（雌二醇（E2）、雌酮（E1）、17α-乙炔基雌二醇（EE2）己雌酚、双酚A、壬基酚、辛基酚、酞酸二丁酯和酞酸二乙基己基酯），研究了它们在Fe-草酸盐配合物体系中的光降解效果，推测其降解机理，探索环境内分泌干扰物光氧化处理的新体系，同时为预测其在环境中的光降解行为提供了依据。

The TiC/Fe composite coatings were prepared by reactive flame spray using ferrotitanium, iron and graphite as the starting materials, which need ignite the self-propagation high-temperature synthesis reaction of Fe-Ti-C system by oxygen-acetylene flame.

在喷涂过程中，在氧乙炔火焰条件下引燃Fe-Ti-C体系的自蔓延高温合成反应，研究该SHS反应的动力学。

A method of N_2O-C_2H_2 flame AAS for determination of aluminium oxide in fluorspar was established.

报道了用笑气-乙炔火焰原子吸收光谱法测定氟石中氧化铝。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。