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Firstly, we analysize the boundary value problem for linear singular system, several properties for linear singular system are given, and then the existence for boundary value problem to nonlinear singular system is proved by using the previous properties discussed and Schauder's fixed point theorem.

接着，利用Banach不动点定理，研究了Volterra型广义积分微分系统边值问题解的存在唯一性，最后给出了几个推论。

The stochastic finite element method can consider the random variables which are associated with soil properties, changeable loads, geometric conditions. The stochasitic properties of parameters and seismics will affect the interaction between soil and pile and the stochastic method is a trend to analyze the problem of pile-soil dynamic interaction.

参数和地震激励的随机性对土-结构动力相互作用的影响，土与结构动力学参数的不确定性和地震激励的随机性是众所周知的，其对结构响应的影响也是很重要的，对于结构的地震响应有重要影响的土-结构动力相互作用考虑各种随机因素的影响也是必然的发展趋势。

In fact, higher education research has not only the basic educational properties but also its distinct properties, which is shown in its ultimacy of research target, complexity in the research course, macroscopy in its level of research subjects, self organization in its research behavior and self-evidence in its way of result presentation.

事实上，高等教育研究不仅拥有教育的基本属性，而且具有自己的独特属性，这表现为它在研究目标上具有终极性，在研究过程上具有复合性，在研究课题层次上具有更强的宏观性，在研究行为上具有自组织性，在研究结果呈现方式上具有自明性等特点。

Firstly properties of the HJ SDF are revealed, and some useful conclusions are obtained. Then by the HJ SDF's properties and the two fund separation theorem, the mean-variance spanning is investigated and the spanning condition is gotten. It is proved by the mathematical method that the spanning condition gotten from HJ SDF is equivalent to the spanning condition gotten from the other methods.

首先研究了HJ随机折现因子的性质，得到了一些有意义的结论；然后结合HJ随机折现因子的性质和两基金分离定理，对均值－方差张成进行了研究，得到了相应的张成条件；最后，从数学上证明，基于HJ随机折现因子得到的张成条件与基于其它方法得到的张成条件是等价的。

The paper examines the properties of cement serosity, clay and fly ash through analyses on the properties of many grouting materials. The research Designs a cement-clay plus fly ash and catalyst mixed grouting liquid featured mobility, high intensity, good stability, cheap price, controllable cementing time and good groutability.

本论文在对多种注浆原材料性能的分析，对水泥浆液、粘土特性和粉煤灰特性分析的基础上，研究设计了具有流动性好、强度高、稳定性好、可注性好、凝胶时间可以调节控制的水泥-粘土-粉煤灰混合浆液。

The results show that the amorphous PLGA fiber with porous structure (0.1-1.0 μm) is obtained by diluted solvent spinning method and the mechanical properties is affected by pressure and temperature. Bending strength and shearing strength of the samples increase firstly and then decrease with the increase of molding temperature and pressure. While the molding temperature is 160℃and the pressure is 105MPa, the PLGA materials possess optimal mechanical properties, bending strength, shearing strength and bending modulus 187.3 MPa, 100.0 MPa and 2.5 GPa, respectively. The mild temperature molding PLGA materials are desired to play a grate role in non-bearing internal fixation devices.

研究结果表明：非晶多孔结构的PLGA纤维可通过溶液沉析纺丝的方法获得，其孔径为0.1~1.0μm；压制压力和压制温度对材料的力学性能影响较大，材料的抗弯强度、剪切强度和抗弯模量均随着温度和压力的增大而先增大后降低；在压制压力为105MPa，压制温度为160℃时，试样的力学性能比较理想，此时，其抗弯强度可达到187.3MPa，剪切强度达到100.1MPa，抗弯模量达到2.5GPa，可望作为非承重部位骨折愈合内固定材料。

Understanding their functional properties in processed foods requires not only knowledge of the physical and chemical properties of isolated carbohydrates, but also knowledge of the reactions and interactions that occur in situs between carbohydrates and other food constituents and the effects of these changes upon food quality and acceptance.

要了解碳水化合物在加工食品中的功能特性，不仅要有单离态碳水化合物的物理、化学性质的知识，还要有碳水化合物与其它食物成分之间在加工食品中就地所发生的反应和相互作用的知识，以及这些反映变化对食品质量和食品可接受性的影响的知识。

Based on the test of slash pine,this paper studied the radial and longitudinalvariation law of the wood properties,furthermore,this paper also dealt with theeffect of two silvicultural measures on the physical and mechanical properties ofthe slash pine.The research result was used to provide the scientific theoreticalbasis for the reasonable exploitation and directive breeding of the slash pine.

本文以人工林湿地松为试验材料，详细研究了湿地松各材性指标的径向和纵向变异规律，并在此基础上，深入研究间伐处理、种植密度处理两种培育措施对人工林湿地松物理、力学性能的影响规律，为人工林湿地松的合理利用和定向培育提供科学的理论依据。

Based on the test of 23-year and 10-year old slash pine,this papersystematically studied the effect of different thinning intensity and different densityof plantation on the wood qualities and properties.Many statistical means such asanalysis of variance and cluster analysis were used to analyze the difference of thewood qualities and properties among the different silvicultural measures.

本文分别以23年生、10年生的湿地松为实验材料，全面地研究了不同间伐强度、不同种植树密度对人工林湿地松材质材性的影响规律，并利用方差分析、聚类分析等统计手段，定量地分析了不同栽培措施之间材质、材性的差异。

This composition possesses remarkable cosmetic properties and confers, in particular, on the make-up or care properties of gloss, of slipperiness during application, and of comfort.

该组合物具有显著的美容特性，并且特别是能在使用中提供亮泽、柔滑的化妆和护理特性，以及舒适感。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。