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The minimum fluidization velocity has a minimum value when the frequency of sound waves is 120Hz and it will decrease as the sound pressure level increases. The degree of sound attenuation will increase while bed material is higher and the fluidization quality of fine particles will become poor and the minimum fluidization velocity will increase. Compared with TiO2, the SiO2 fine particles have a better quality of fluidization at the same fluidized conditions.The cluster/subcluster model and oscillators model are used to describe the fluidization characteristics of fine particles in a sound-assisted fluidized bed. The theoretical calculations show that the minimum fluidization velocity umf is decreased with the SPL increased at the same frequency of sound and the quality of fluidization is better.

论文还系统的考察了声压和频率对纳米SiO2和TiO2颗粒流化特性的影响，结果表明：在频率一定的情况下，声压越高，流化床中形成的聚团尺寸越小，最小流化速度越低，流化质量越好；当声压低于120dB时，声场对超细颗粒流化特性的影响减小，当声压大于130dB时，则能显著改善流化效果，使流化床内的颗粒聚团明显减小，最小流化速度明显降低，粉体带出减小；声压一定，频率为120Hz左右时，最小流化速度最低，此时流化床中形成的聚团尺寸最小，流化效果最好；超细颗粒达到较好的流化状态存在一个最佳频率范围，随着声压增高，这个频率范围将增大。

By above research and the analysis, the author elaborated reform direction of fine arts education vocationalism ,and has expounded reform contents from the specialty and the curriculum system, teaching styles to the qualities of teachers and students. The article emphasizes the reform on changing traditional teaching methods that focus more on theory than practice, more knowledge than skills; It advocates the training on student′s capabilities and skills, methods that sharpens student′s skills and the creative and innovative abilities. In a result,the fine arts education pattern will meet better need of market and the education development itself.Key words: fine arts education, art vocational education, art education reform, art vocational

本文通过以上的研究和分析，论述了中专美术教育的职业化改革方向，提出了关于中专美术教育创建具有自身特点和优势的职业教育体系的见解，阐明了从专业与课程体系到教育教学形式再到师生素质等一系列教育改革内容，强调中专美术专业的教育应改变传统的重理论、轻实践；重知识、轻技能的教学理念，注重对学生技术技能的培训，提高学生的实践能力和创造、创新能力，从而使中专美术的教育模式更加符合时代的需求，也更加符合教育自身发展的需求。

The same year with the Institute of Fine Chemicalto develop fine chemical products - o-aminobenzoic acid, and 1.4 million yuan of funds into an annual output of 200 tons built anthranilic acid production line, by the province for the Prohibition of Chemical Weapons Convention to fulfill the work of leadership Office approval in April 2002 with an annual output of 200 tons of the scale of operation, product quality compared with similar products in the domestic leading level, in October 2002 to carry out technical transformation again, the scale of production from 200 tons; years expanded to 500 tons; in size, and product performance, production capacity of plant expansion requirements, in 2003 officially put into operation. The end of 2004 our company moved to Sequoia small city are on the 1st, covering over 20,000 square meters, anthranilic acid after the removal of the production line expanded to 1200 tons; in size, at the same time developed a 2,2 - Dithio Benzophenone acid, benzo-iso thiazoline -3 - one, dichloro-acetonitrile, thiophene tons of ketones, a series of inter-amino benzoic acid, etc. Fine Chemical Products.

同年公司与上海桑迪精细化工研究所合作开发精细化工产品—邻氨基苯甲酸，并投入140万元资金建成了年产200吨邻氨基苯甲酸生产线，经省履行禁止化学武器公约工作领导小组办公室批准于2002年4月以年产200吨的规模投入运行，产品质量与国内同类产品相比处于领先水平，2002年10月公司再次进行技改，把生产规模由原来的200吨；年扩到500吨；年规模，且产品性能、生产装置能力达到扩产的要求，2003年正式投入运行。2004年末我公司搬迁至杉城小均1号，占地2万多平方米，搬迁后邻氨基苯甲酸生产线扩大到1200吨；年规模，同时开发了2，2-二硫代二苯甲酸、苯并异噻唑啉-3-酮、二氯乙腈、噻吨酮、间氨基苯甲酸等一系列化工精细产品。

The method uses first phase law to determine 63 DVT patient contrasts normally with 30 the F Ⅻ C of the group, use law of thing of the heart that deliver quality to detect at the same time zymogen of serous fine dissolve is active , law of enzymatic couplet immunity measures sex of antigen of content of activation of zymogen of methodize fine dissolve (depressor of content of activation of zymogen of dissolve of T-PAAg), fine - 1 antigen sex (PAI-1Ag) and immunity compare chaotic law to determine serous D-2 gets together body content.

方法采用一期法测定63例DVT患者和30例正常对照组的FⅫC，同时采用发色底物法检测血浆纤溶酶原活性，酶联免疫法测定组织型纤溶酶原激活物抗原性、纤溶酶原激活物抑制剂-1抗原性(PAI-1Ag)及免疫比浊法测定血浆D-二聚体含量。

The wolframite, scheelite, tantalum niobite and fine spar have uneven distribution in the raw ores. Relatively, the wolframite and scheelite have coarse embedded granularity, generally 0.8 ~ 0.04 mm. The tantalum niobite and fine spar have fine embedded granularity, generally 0.2 to 0.04 mm.

原矿中黑钨矿、白钨矿、钽铌铁矿、细晶石的嵌布粒度皆为不均匀嵌布，黑钨矿与白钨矿的嵌布粒度相对较粗，一般为0.8~0.04毫米，而钽铌铁矿及细晶石的嵌布粒度则很细，一般为0.2~0.04毫米。

World Sites: Sarajevo's Academy of Fine Arts, New Zealand's Porirua City's Pataka Museum, the Cultural Center of the Philippines, NYC's Mercer Park, Spain's Ethnological Museum, Toronto's Wallace Emerson Park, Taipei's Kuandu Museum of Fine Arts, Fine Art Museum of Ho Chi Minh City, Istanbul's Artemis Art Center, Berlin's Bar of Modern Art, etc.

「磁砖计画」终点：世界22个世界据点：沙拉杰佛艺术学院、纽西兰波利洛市、巴塔卡博物馆、菲利宾文化中心、纽约市马瑟公园、西班牙民族博物馆、多伦多华勒士、伊莫森公园、台北关渡美术馆、胡志明市美术馆、伊斯坦堡阿特米斯中心、柏林现代美术酒吧。。。。。。

A steel plate having a tensile strength of at least about 930 MPa (135Ksi), a toughness as measured by Charpy V-notch impact test at least about 120 joules (88 ft-lb), and a microstructure comprising at least about 90 volume percent of a mixture of fine-grained lower bainite and fine-grained lath martensite, wherein at least about 2/3 of said mixture consists of fine-grained lower bainite transformed from unrecrystallized austenite having an average grain size of less than about 10 microns and comprising iron and specified weight percentages of the additives: carbon, silicon, manganese, copper, nickel, niobium, titanium, aluminum, calcium,rare earth metals, and magnesium, is prepared by heating a steel slab to a suitable temperature; reducing the slab to form plate in one or more hot rolling passes (10) in a first temperature range in which austenite recrystallizes; further reducing said plate in one or more hot rolling passes (10) in a second temperature range in which austenite does not recrystallize, quenching (12) said plate to a suitable quench stop temperature (16); and stopping said quenching and allowing said plate to air cool (18) to ambient temperature.

一种钢板，其抗拉强度至少约930MPa135ksi），在－40℃（－40°F）下，采用夏氏V型缺口冲击试验测定的韧性至少约120焦耳（88英尺－磅），并且其显微组织包含至少约90％体积的细晶粒的下贝氏体和细晶粒的板条马氏体的混合物，其中该混合物的至少约2／3由从平均粒径小于约10微米的未再结晶奥氏体转变而来的细晶粒的下贝氏体组成，而且，其中所述的钢板包含铁和特定重量百分比的添加元素：碳、硅、锰、铜、镍、铌、钛、铝、钙、稀土金属和镁，所述钢的制备过程为：将一钢板坯加热至一个适当的温度；在奥氏体可发生再结晶的第一个温度范围内，采用一个或多个热轧道次（10），将所述板坯轧制成板材；在奥氏体不发生再结晶的第二个温度范围，采用一个或多个热轧道次（10）进一步轧制所述板材；将所述板材淬火处理（12）至一个适当的淬火终止温度（16）；停止所述淬火处理并将所述板材空冷（18）至室温。

In this text, on the base of gradation design, the pavement performances of lime-fly ash stabilized aggregates and lime-fly ash mortar under controlling fine aggregates gradation are studied, and contrasted with the mixtures which are under uncontrolling fine aggregates gradation, including mechanical performance, stableness, anti-brushing performance, the anti-crack performance, and drawing the conclusion of controlling fine aggregates gradation.

在配合比设计的基础上，研究了控制细集料级配的二灰砂浆和二灰碎石混合料的力学性能、稳定性能，以及二灰碎石的抗收缩性能、抗冲刷性能，并与不控制细集料级配的二灰砂浆和二灰碎石混合料的路用性能进行了对比，得出实际施工中应控制细集料级配的结论。

In order to realize the pre-mixed water jet flow ultra fine coal comminuting devices automatic control, raises the fine coal of smashing efficiency and the product quality, designed the pre-mixed water jet ultra-fine coal comminuting configuration monitoring system.

摘 要：为实现前混合水射流超细煤粒粉碎装置的自动控制，提高煤粒粉碎效率和产品质量，设计了前混合水射流超细煤粒粉碎装置的组态监控系统。

At the same time, in the exhaust under the fine powder container bag by trapping filter back to the outdoors, the process of trapping a large number of ultra-fine powder will have the selection, whether it is boiling in the flow or trapping operations , boiling the whole process of drying with ultra-fine powder movement.

同时，在排风作用下，容器内细微粉体经捕集袋过滤后排向室外，其捕集的过程就有大量的超细粉的产生，不管是在流态沸腾还是在捕集运行中，沸腾干燥的整个过程均伴有超细的粉体运动。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？