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On the problem of model parameter determination, the singularity distribution method is used to derive the expressions for numerically calculating the added mass arised from vibration of the structure under three-dimensional case; The aero-dynamic damping ratio is identified from the testing data based on the methods of empirical mode decomposition, improved random decrement and Hilbert transformation; The reduced-order spectral representation method is also deduced in this chapter based on the technique of proper orthogonal decomposition.
在模型的参数计算上,采用奇点配置法推导了三维情形下结构振动诱导流场附加质量的数值计算方法;联合采用经验模态分解、改进的随机减量法及Hilbert变换对索穹顶结构的气动阻尼进行了识别分析;推导了基于本征正交分解的降阶谱解法。
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In order to provide a photo detector in which the generation of spontaneous noise is suppressed and external noise is effectively reduced, a p-type diffusion layer is provided on the obverse side of an n-type semiconductor substrate, a p-type low-resistance layer is provided on the obverse side of the p-type diffusion layer, a lead frame is provided on the reverse side of the n-type semiconductor substrate with an insulative resin film in between, and the p-type low-resistance layer is electrically connected to the lead frame.
为了提供能够抑制自发噪声的产生并有效地减少外部噪声的光检测器,在n型半导体衬底正面设置p型扩散层,在p型扩散层正面设置p型低电阻层,在n型半导体衬底的反面设置引线框架、中间夹有绝缘树脂薄膜,p型低电阻层电连接到引线框架。
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A Stillage is a metal frame, which is used to dispatch Rapidwall. Creating a SPL is a logistical task, where on one hand the transport truck has to be loaded as good as possible and on the other hand panels have to be packed in the right order that setting up on site can be done easier.
创制SPL是一项逻辑性的任务,一方面运输卡车要尽可能地装载好,而另一方面墙板要按正确的顺序包装,这样现场的架设就能够作得更容易。
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A computer-aided local transient flow property measuring system was developed using a high speed CCD camera coupled with optical fibers in order to study the Gas-liquid-solid three-phase jet loop reactors. SnO2 crystal films were orientally deposited on the alkoxysilane molecule-coated hydroxyl glass substrates so as to prepare surface-marked particles as the tracers. An image analysis system was established to identify different phases. Stroboscopic photography was utilized to extend the measure range. The developed measuring and analysis system was capable of determining accurately the local transient flow property in a G-L-S jet loop reactor. Based on the above system, local transient flow properties of gas, liquid, and solid phase were measured and studied the influences of fluid property, operation and configuration parameters on the reactor.
以气液固三相喷射环流反应器为研究对象,将高速CCD和光纤束耦合制成局部瞬态流动特性微机数据采集及图象处理系统,利用MPS硅烷分子在带有羟基的玻璃基底上的自组装引导SnO2晶态膜层在功能化表面上进行沉积,以获得表面标记的示踪粒子,解决图象处理技术与相的识别的问题,利用频闪技术拓展了测量上限,得到可以准确测定气液固三相喷射环流反应器中局部瞬态流动特性的测试系统;采用上述测试技术进行喷射环流反应器中局部气相、液相与固相瞬态流动特性的实验研究,并考察物性参数、操作参数与结构参数的影响规律。
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First of all , use industrial analytic approach of supersession impact on environment is it analyse to go on in the course of supersession to industry material; Secondly, the ones that adopted also to energy analysed detailedly, have utilized and widenned the road for the energy of industry's system; Moreover , carry on the analysis of the different levels to the intergrowth relation of the system; Finally , analyse the improvement of the whole adaptive capacity changed to the environment in order to seek the system through the flexibility of such respects as the price , storage ,etc..
首先,运用工业代谢的分析法对工业物质在代谢过程中对环境的影响进行分析;其次,又通过对能量的详细分析,为工业系统的能量利用拓宽了道路;再次,对系统的共生关系进行不同层次的分析;最后,通过价格、仓储等方面的柔性分析以寻求系统对环境变化的整体适应能力的提高。
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Make up one's mind the minister of foreign affairs miss an opportunity make a mistake by mistake in modern times small money have no money with sb. make sb. monitor on the early morning at the top of the mountain join the navy if necessary in need of help take on a new look hit sb. on the nose make / take notes have nothing to do with put up a notice pay no notice to sb. be in operation place an order for sth.
下决心 外交部长错过机会犯错误由疏忽所致现代零钱某人身上没钱选某人为班长某一天清早在山顶上参加海军如果有必要的话需要帮助呈现一片新面貌打某人的鼻子做笔记与…无关张贴通知对某人毫不在意运转着,实施中订购某物失业了一副眼镜颐和园
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For some kinds of vegetables and pasturages, the contents of some heavy metals surpass the relevant quality standards, so when some crops were planted on the substrates, the uneatable species should be selected preferably and if some kinds of vegetables and pasturages must be adopted, the output could not be provided to mankind and also not be used in farming, in order to avoid harming peoples'health.5 The expediency evaluation model of pioneer plant on substrates was established and some plants were studied. The results show that the expediency evaluation of pioneer plants were respectively that clover was expedient to substrate 1, juniper, cotton and fescue were expedient to substrate 2 and juniper, annual bluegrass, fescue, cotton and clover were expedient to substrate 3.6 Some indexes to evaluate the capability of the phytoremediation on heavy metals and the comprehension about hyperaccumulator were put forward.
有多种植物的重金属含量超过了相应的国家标准,因此在基质上种植植物时,尽量选择非食用性植物品种,即使种植了蔬菜和牧草等植物,也不应将收获后的产品供人类食用或用于畜牧生产,以免危害人体健康。5建立和研究了复垦基质先锋植物的适宜性评价模型,结果表明,不同基质中适宜的先锋植物分别如下:基质1为苜蓿,基质2为桧柏、棉花和高羊茅,基质3为桧柏、早熟禾、高羊茅、棉花和苜蓿。6探讨了评价重金属元素植物修复能力的指标体系和"超富集植物"的概念。
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Beyond that , in order to explain why women mother ,they tend to rely on vague notions of a girl's subsequent identification with her mother, which makes her and not her brother a primary parent, or on an unspecified and uninvestigated innate femaleness in girls , or on logical leaps from lacation or early vaginal sensations to caretaking abilities and commitments.
除此之外,为了解释女人何以为母亲,他们基于这样一种模糊的认识,认为女孩紧接其母亲的认同,使她而不是她的兄弟成为原初的母亲;或认为女孩具有不被知晓的天生的女性特质;或从哺乳或生殖器官的感受到照顾的权力义务之间进行逻辑关联。
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The paper has conducted the research to unipolarity ADC on the 2nd order front filter, and by using the Pspice software to carry on the analysis on the filter effect under different noise source, obtained the optimal filter design method under the similar application.
论文对单极性ADC前向电路中的二阶滤波回路进行了研究,并利用Pspice软件对来自不同干扰源下的回路滤波效果进行了分析,得出类似应用下的滤波回路设计优选方案。
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In order to obtain high LIDT antireflective coatings on the nonlinear optical crystal LiB3O5, this dissertation focuses its main interests on the following four aspects: Firstly,frequency doubling and tripling AR coatings were designed on the LBO crystal using vector addition method.
本文围绕提高非线性光学晶体LiB3O5上增透膜的激光损伤阈值(laser induced damage threshold, LIDT),这一中心问题,主要开展了四方面的工作。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。