主要原料

This article main research take the titanium sulfate and the iron trichloride as a raw material, take the urea as the alkali source, uses the cryochemistry method, the synthesis superfine TiO2-Fe2O3 compound photocatalyst, and has studied the sample structure and the ultraviolet receptivity with the X-ray diffraction and the ultra-violet spectrograph.

本文主要研究以硫酸钛和三氯化铁为原料，以尿素为碱源，采用低温化学方法，合成超细TiO2-Fe2O3复合氧化物，并用X射线衍射和紫外光谱研究了样品的结构和紫外吸收性能。

While China relies mainly on coal and hydroelectric power for electricity generation, oil-fired plants are important in southeastern China.

以原油为原料的电厂因为高油价不得不关闭，中国虽然主要依靠煤电和水利发电，但原油电厂对中国东南地区是很重要的。

Fifteen one-layered fabrics with different texture, density of fabric and fiber disposition were designed and woven before the designation of medical barrier fabrics.

在设计医用屏蔽织物之前，设计与试织了十五种具有不同织物组织、经纬密度和原料配置的单层织物，通过对它们进行性能测试和分析，探讨织物组织结构对其拒液性和透湿性的影响，得出了织物组织、纤维细度、织物紧度、织物达到高密的方法等几个因素影响这两种性能的主要规律，为医用屏蔽织物的开发奠定了理论基础。

Chemical companies produce chemical and paint thinner and other chemicals.

化工企业主要生产化工油漆和稀释剂及其他化工原料。

In this thesis, effects of common factors in yeast extract production with autolysis on yield and total amount of amino acid nitrogen in supernatant, degradation of RNA and saccharides during autolysis were studied, in which fresh baker\'s yeast was used as material. Extraction of 5\'-phosphodiesterase from barley rootlets was also studied. The optimum technology conditions of yeast extract production was determined by comprehensive considering results of above-mentioned study.

本论文以新鲜面包酵母为原料，研究了自溶法生产酵母抽提物过程中的影响因素对得率、上清液氨基氮总量、自溶过程中RNA降解及糖类物质降解的影响，同时还对麦芽根中5'-磷酸二酯酶的提取进行了研究，综合以上研究结果优化了酵母抽提物生产的工艺条件；此外，从酵母自溶残渣中提取了酵母细胞壁多糖，并对该多糖的乳化性及酯化修饰进行了研究，取得了下述主要研究结果。1。

Since China's large cities were faced with serious coal\|smoke pollution with PM 10 and SO 2 as the main pollutants, natural gas is becoming one of the most attractive clean replacers of coal.

国内大城市以PM10 和SO2 为主要污染物的煤烟型污染十分严重，因而天然气作为煤的清洁替代品已越来越受到人们的重视。过去天然气作为宝贵的战略资源多被用作化工原料，而对是否应将其作为城市民用燃料存有争论。

It's also applied in base plate of electric circuit, analysis reagent and hig-pressure-Na-lamp materials. It can be made to analyst carrier used in petroleum chemical industries.

Al〓O〓超微粉还可用于：制造集成电路基板，用作分析试剂及高压钠灯电弧等高级陶瓷原料；将纳米化α-Al〓O〓制成条状用作催化剂和催化载体，是石油炼制和石油化工中的主要催化剂和载体。

The combustion of coke sampling from a boiler of ethylene plant was studied on a laboratory unit. The effects of combustion temperature and oxygen flow rate on coke combustion were investigated. Four combustion promotors were prepared and added into the coke for proceeding the combustion test.

摘 要：采用国内某乙烯厂余热锅炉生成的焦炭为原料，在自行设计的焦炭燃烧试验装置中，对乙烯装置余热锅炉焦炭的燃烧过程进行研究，考察了温度、氧气流量等主要因素对焦炭燃烧的影响，并研究配制了4种具有良好助燃效果的助燃剂组分进行焦炭催化燃烧试验。

The combustion of coke sampling from a boiler of ethylene plant was studied on a laboratory unit. The effects of combustion temperature and oxygen flow rate on coke combustion were investigated. Four combustion promotors were prepared and added into the coke for proceeding the combustion test.

采用国内某乙烯厂余热锅炉生成的焦炭为原料，在自行设计的焦炭燃烧试验装置中，对乙烯装置余热锅炉焦炭的燃烧过程进行研究，考察了温度、氧气流量等主要因素对焦炭燃烧的影响，并研究配制了4种具有良好助燃效果的助燃剂组分进行焦炭催化燃烧试验。

The main raw materials used today are pigskins, cattle bones and cattle hide. Of these, the most common source is pigskins.

目前，猪皮、小牛骨和小牛皮是主要使用的原料，其中猪皮是最常见的来源。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。