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On the other hand, studies on application of chitosan to wastewater focus on limited fields such as decolor, removal of metal ions, and so on, most of which were carried out in the 1980s and 1990s.

国内外关于壳聚糖絮凝剂的制备研究较多,但大部分是采用传统的碱液法,成本高,而且耗时;对于恒功率微波法制备壳聚糖的研究相对较少,而对于变功率微波法制备壳聚糖的研究至今还未见有报导。

This paper de-duces the equation of scroll case surface with the enveloping theory,builds the envelope sur-face of ellipsoides with variable radius by using the the method of constructing an ellipse withseveral arcs and presents a new and simple method fOr geometry moulding of scroll case sur-face.

蜗壳是水电站的重要部件之一,本文以包络理论推导了蜗壳曲面方程;并采用分段圆弧构造椭圆的方法构造了变径椭球包络曲面,为蜗壳曲面的几何造型提出了一种新的简便方法。

In order to demonstrate the practicability of construction excogitation,further to ensure the security of the design and construction,this paper analysed the stress conditions of large span reticulated shell-string structure through simulating the process of construction,monitoring the whole construction process and the complete status of the large span reticulated shell-string structure us.

网壳施工时的受力情况不同于设计状态,应用ANSYS中的生死单元法,对大跨度双层张弦网壳施工进行模拟分析,并对施工全过程进行监测,将模拟计算结果与监测值、设计值进行比较,验证施工方案的可行性,确保了网壳在施工时的安全。

On the based of the practical project — HTSSP20-6300/35 shell type cooker transformer design, this paper construes the calculate methods and the protect principium, discusses the relation of the gassiness component in oil to the transformer" malfunction and transformer inside fault, and draws the reliability design"s basic concepts of the shell type electric cooker transformer.

借助于对工程实际HTSSP20-6300/35壳式电炉变压器的研究分析,综述了壳式电炉变压器的计算方法和保护原理,深入探讨了油中含气组份和电炉变压器内部故障之间的关系,并提出了壳式电炉变压器可靠性设计的基本概念体系。

The eight major research topics are :①understanding coremantle processes, by deep drilling into a large oceanic plateau in the Western Pacific;②detailed investigation of material circulation during greenhouse Earth, and the transition process from greenhouse to icehouse environments, by drilling Cretaceous to Cenozoic sediments in the Pacific,③understanding the process of continental crust formation by deep drilling into oceanic arc,④Understanding the process of oceanic lithosphere formation by deep drilling of the back arc spreading system,⑤understanding of continentoceanatmosphere linkage, by drilling in the marginal seas and continental slopes of Asia,⑥investigation of the carbon cycle and the deep biosphere in accretionary prisms,⑦investigation of the mechanism and cycles of great earthquakes, tectonics, and mass circulation in convergent plate margins,and ⑧biology of extreme microorganisms living in deep accretionary prism environment.Keywords : Japan IODP Drilling Scientific goals.

其八项研究目标为:①钻探西太平洋洋底高原,认识核—幔作用过程;②钻探太平洋白垩纪—新生代沉积物,详细研究地球温室期间的物质循环及从温室环境到冰室环境的转化过程;③钻探大洋岛弧,认识大陆地壳形成过程;④钻探扩张的弧后,认识洋壳岩石圈形成过程;⑤钻探亚洲边缘海及陆坡,认识陆壳—洋壳—大气圈关系;⑥调查增生楔中的碳循环及深部生物圈;⑦调查汇聚板块边缘大地震周期及形成机制、构造及物质循环;⑧研究生活于增生楔环境中极端微生物生物学。

The numerical calculation results indicate that, when the transitional process has finished, the temperature rising speed of inwall and outerwall is almost a constant, and the temperature difference of inwall and outerwall keeps invariably during laser irradiation.

利用有限元法对金属球壳在恒定功率密度激光辐照下的热效应进行了数值计算,分析了在激光辐照过程中,金属球壳内外壁的温升、温差的变化规律,并主要以铜、铝材料为例,比较了铜、铝球壳在激光辐照下的温度变化和外壁温度响应情况。

Because the morphine content in the mown poppy pod was relatively low for the geographical origin identification of the poppy, the unknown poppy pod was suggested to be used to achieve the aim of morphine 〓C determination by GC-C-IRMS.

2罂粟壳中吗啡提取方法的研究研究了从罂粟壳中提取吗啡的方法,所选的三种提取方法均能达到从罂粟壳中提取吗啡的目的,吗啡提取率达90%以上。

With an example, the paper uses finite element program ANSYS to establish three calculating model of the steel-concrete composite open-web floor: the combination finite element method of spatial beam elements and shell elements, the finite element method of shell elements and the combination finite element method of shell elements and entity element.

结合一算例,利用ANSYS有限元软件,建立了组合空腹楼盖的三种计算模型:空间梁单元与壳单元的混合元模型、空间壳单元模型、壳单元和块体单元模型三种理论计算方法,对这三种计算模型作分析对比,得到了静荷载作用下该类结构的内力分布规律及其他一些有价值的结论。

With independent intellectual property rights "industrial boiler burning rice husk" technology to fill China's direct use of rice husks industrial boilers replaced coal technology gap is the use of renewable biomass energy that rice husk, reducing corporate energy costs and reduce environmental pollution, practice Economic characteristics of a cycle of professional firms.

具备自主知识产权的&工业锅炉燃烧稻壳&技术填补了我国工业锅炉直接利用稻壳替代煤的技术空白,是利用稻壳这一可再生生物质能,降低企业能源成本,减少环境污染,实践循环经济的一家特色专业公司。

The folded plate latticed shell is a new type of lattice space structure, having merits of both folded plates and spatial lattice structures.

一、折板形网壳结构折板形网壳结构是将通常的单层网壳弯折而成的一种波形截面,从而获取较大的结构高度。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。