查询词典 composite hypothesis

Pre-stressed composite space truss is one of the new kind of space structure systems developed on the basis of prestress and space truss, which consists of steel and reinforced concrete. At present the study in this field is just being begun in our country. Therefore, in this paper static and dynamic performances of pre-stressed composite space truss associated with a practical engineering are studied, in addition, dynamic test on construction site and model experiment are done. Finally, we conclude this structure is well in stress and stiffness and dynamic characteristics.

预应力组合网架是一种基于网架和预应力技术发展起来的由钢和钢筋混凝土组合而成的新型预应力空间结构体系，目前国内在此领域的研究和应用都较少，为此，本文结合实际工程对预应力组合网架进行了静力和动力的分析研究，并作了施工现场的动力测试及模型试验，总结出预应力组合网架受力比较合理，刚度、动力特性好，是值得推广的一种空间结构形式。

The homogenization method uses the asymptotic expansion of small parameters, and the effective properties of composite materials are extremum, which are different from the real properties of composite materials.

事实上，多孔材料物性参数测试结果与均匀化计算结果均存在一定差异，这种差异就是材料的尺度效应。

Initial random imperfections of composite panels are assumed to be Gaussian random fields and simulated numerically from their mean and autocovariance functions. Lindstedt-Poincare's perturbation technique is employed to solve the resulting nonlinear equation in the vibration analysis of imperfect composite panels. Monte Carlo analyses are performed for detailed numerical calculations.

层板之随机性几何缺陷以高斯随机场来描述，并利用其平均值函数及自方差函数来做数值的模拟；以Lindstedt-Poincare微扰方法来处理缺陷复合层板之非线性运动方程式，并使用蒙地卡罗法来做详细的数值分析。

Introducing the application of composite pile in soft soil foundation treatment in F1 Autodrome Project, and giving the main advantages of composite pile, such as less settlement after construction, short period of preloading and direct construction of subgrade.

重点介绍F1赛车场工程采用复合桩基处理软土路基，并说明了复合桩的主要优点，工后沉降少，预压期短，可直接进行路基填筑。

In order to improve the protection and maneuvering capability of armored vehicle, and reduce its weight, Using the 25mm ballistic curve canon and 105mm simulated Armor Piercing ammunition, influence of thickness, obliquity, and constraint condition of ceramic composite armor on the anti elastic performance was studied when subjected to the large inclination impact, DOP method was used to evaluate the anti elastic performance of composite armors.

胡丽萍，王智慧，侯圣英，郭领，王鹏中国兵器科学研究院宁波分院烟台事业部，山东烟台 264003 为了提高装甲车辆的防护和机动能力，减轻其自重，采用25 mm弹道炮和底推式105 mm穿甲模拟弹进行试验，研究大倾角陶瓷复合装甲结构单元中陶瓷的厚度、倾角、约束条件等因素对抗穿甲性能的影响规律。

To improve the electrochemical properties of Si/C composite for lithium ion battery anodes, core-shell structured carbon-coated Si/C composite was prepared by spray drying technique.

为提高锂离子电池高容量Si／C复合负极材料的电化学性能，采用喷雾干燥法制备了核壳结构的碳包覆Si／C复合材料。

Through making industrial experiment of zinc nitrate with existing equipments,the industrial experiment s of calcium ammonium nitrate and nitro-composite fertilizer show that the production of a calcium ammonium nitrate and nitro-composite fertilizer exist many problems,and so it is need to improve the process and increase equipments.

通过在现有装置上进行的四硝酸锌工业试验、硝酸铵钙工业试验和硝基复合肥的工业试验研究表明，硝酸铵钙和硝基复合肥的生产都存在许多问题，需要改进现有工艺和增加许多设备。

Ferrotitanium , nickel and sucrose to carbonize the sucrose. TiC/ Fe-Ni composite coatings were prepared by plasma spraying of the Ti-Fe-Ni-C composite powder .

以 TiFe粉、Ni粉和蔗糖为原料，通过蔗糖的热分解碳化制备 Ti-Fe-Ni-C系反应热喷涂复合粉末，并利用等离子喷涂制备了 TiC/ Fe-Ni复合涂层。

The company is specialized in producing and developing the catch basin covers, cable ducts, cases and water tanks of macromolecule composite material and composite material, which are widely used in the fields such as electric power, water conservancy, airport, power plant, railway and highway, etc..

公司专业生产研发的高分子复合材料及复合材料窨井盖、电缆槽、各种箱盒、水槽等系列产品，被广泛运用到电力、水利、机场、电厂、铁路、高速公路等行业。

A new type in-situ reinforcing Cr7C3 ceramal composite coating was fabricated on carbon steel(C3) substrate by plasma cladding. Microstructure of the ceramal composite coating was characterized by SEM, XRD and EDS. Room and high temperature wear properties were evaluated under dry sliding wear test conditions and their wear mechanism was discussed.

采用等离子熔覆技术，在调质C3钢表面制得以原位生成初生相Cr7C3为增强相的金属陶瓷复合材料涂层；利用SEM、XRD和EDS等分析了涂层的显微组织和相组成；测试了在室温干滑动磨擦及高温滑动磨擦条件下涂层的耐磨性，并讨论了其磨损机理。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？