试验方法

It also carries on four levels of single-factor laboratory experiments with three sample soils: clay, cohesionless soil and sandy soil, concerning three elements: cement mixture ratio, age, water content in order to find out the contractibility under different test conditions, and also the permeability of locking surface between cement soil and concrete.

试验选择粘土，粉砂土和粗砂土三种土质，采用室内试块试验的研究方法，选择水泥掺入比、龄期、含水量三种因素，分别进行了四种不同水平的单因素试验，研究水泥土在不同养护条件下的收缩性，通过水泥土和混凝土咬合面渗透试验来检验两者咬合面的抗渗性。

Based on the similarity theory, two degrees of freedom flight test platform was designed to simulate the helicopter, then the platform was taken as the research object, and the Lagrange-Euler equation and the equivalent moment method were used to derive the system dynamics model, and the physical parameter was estimated.

基于相似性理论设计了具有两自由度的直升机飞行模拟试验平台，以该试验平台为研究对象，利用拉格朗日一欧拉方程与等效力矩相结合的方法推导出系统的动力学模型，预估了试验平台的物理参数；通过试验获得在固定总距角情况下直升机的升力随转速的变化关系。

Based on the similarity theory,two degrees of freedom flight test platform was designed to simulate the helicopter,then the platform was taken as the research object,and the Lagrange-Euler equation and the equivalent moment method were used to derive the system dynamics model,and the physical parameter was estimated.

基于相似性理论设计了具有两自由度的直升机飞行模拟试验平台，以该试验平台为研究对象，利用拉格朗日-欧拉方程与等效力矩相结合的方法推导出系统的动力学模型，预估了试验平台的物理参数；通过试验获得在固定总距角情况下直升机的升力随转速的变化关系。

Furthermore, a plan of designing the small model having a step bottom is provided in the experiment of restricting model. And a plan of jetting from foreside and middle part of the large scale model is adopted in experiment, all these are our innovative points.

此外，在小比尺模型试验中，还提供了一种断阶喷气试验设计方案，在大比尺模型试验中，采用了首中部同时喷气的方法，这些都是本文试验的创新之处。

This paper deploys research about the damnification identify, employ capacity and reinforce technology with reason of Double bend arch bridge through finding out disease position of construct and cause, colligating these result of the actual bridge detection and load test and analysis and research on the theoretics of damnification ,and so on,despending on a lots of measure and means ,finding out its present condition and checking structure internal force through choosing the proper mechanics model according as a lots of prototype information.

本题以安徽省省道S310上K139+000处的大店岗桥为实例，从检测入手，利用各种检测方法和手段，了解双曲拱桥的现行工况，并依据各类原型资料选择合适的力学模型进行结构内力验算，通过荷载试验、理论分析等方法，查明结构的病害部位和形成原因，综合实桥检测结果和荷载试验结果以及损伤理论的分析研究等等，展开对双曲拱类桥型的损伤鉴定、使用能力和合理加固技术方法的研究。

A new method of rapid measurement on the content of sulfuric acid anhydride in coal ash is described with its test principle, experimental material, procedures and comparative test data of the new and conventional methods.

介绍一种快速，准确地测定煤灰中三氧化硫含量的方法，阐述了该方法的试验原理、实验材料和操作步骤，并提供了新旧方法对比试验的数据。

Based on them, distribution laws of subgrade temperature field under fluctuant boundary temperature cycle conditions are analyzed, and different ratios of slope for general subgrade and different status when there are or not banquettes are compared by laboratory simulation and numerical analysis; thermal insulation and cooling effect of thermal insulation slab, broken stone and non-power heat pipes is respectively investigated under the trend of elevated temperature by numerical analysis, laws of subgrade deformation are predicted under the trend of elevated temperature and influences of subgrade thaw settlement on pavement stress are studies by numerical computation for observation data of representative road sections selected.

为研究青藏公路冻土病害处治对策，从青藏公路2002年～2004年冻土病害整治工程实际出发，在系统分析研究青藏公路病害及发生机理的基础上，运用室内模拟试验、数值分析方法，依托处治冻土病害路段实际使用的隔热板路基、碎石路基、无动力热棒路基等进行现场试验，分析边界温度周期波动条件下的路基温度场分布规律，同时进行一般路基不同边坡坡率的对比研究及有无护坡道的对比研究；运用数值分析方法，对气温升高趋势下隔热板、碎石、无动力热棒的隔热降温效果进行了研究；选择代表性路段观测资料，运用数值计算的方法，进行升温趋势下的路基变形预测，研究路基融沉变形对路面应力的影响。

Testing reults demonstrate that the economy of equipment and materials as well as the efficiency of work has been improved apparently by our method, as compared with the current me hods.

由于现行的水泥标号检验方法在效率阳经济上有着许多的缺点，本文提出一新方法以改进之，试验结果证明，在经济设备投资和试验材料方面以及工作效率方面，本方法确有一定的改进。

For the first time, SPAMP technique applied on the locomotive and passenger vehicles is proposed by using both the theoretical modal parameter analysis and the operational modal parameter identification techniques.

本文在铁路客车实测试验的基础上，采用试验测试和样机分析相结合的方法综合研究铁路客车动力学问题，提出适合铁路客车动态特性研究的环境激励下的模态参数辨识方法，建立铁路客车运行特性和运行模态参数的关系，探索这些理论和方法在铁路客车的正确应用。

Since tests prescribed in monographs have been developed using thioacetamide reagent R, if sodium sulphide solution R1 is used instead, it is necessary to include also for methods A and B a monitor solution, prepared from the quantity of the substance to be examined prescribed for the test, to which has been added the volume of lead standard solution prescribed for preparation of the reference solution.

由于专论中的试验描述使用硫代乙酰胺试液，如果用硫化钠溶液R1(0.1ml)代替，方法A和方法B的控制溶液应按照试验中待测供试品要求的数量加入到方法规定体积的标准铅对照溶液中。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。