模拟试验

Position parameters were obtained from the simulation with the model of towed array.Based on the theory of radiated noise forming, the launch noise was simulated according to test condition in Laboratory,and the result showed the launch impulsion noise obeyed SαS distribution. The simulated noise attenuating in deep sea was analyzed with a sound loss translation model.Minimum variance distortionless response,spatially smoothed MVDR, and beam-space multiple signal classification algorithm were adopted to process the signal, hence the source level, the frequency structure and the location of the launch noise were achieved.

基于试验的实际情况，根据潜艇拖曳阵模型，仿真生成了各水听器阵元与本艇的位置关系；根据噪声源理论模型分析产生雷弹发射模拟噪声，利用SαS分布模拟武器发射冲击噪声，仿真分析模拟噪声在海洋环境中的传播衰减，对阵元信号分别利用最小方差无畸变响应法（MVDR 、空间平滑MVDR以及适应子带的波束域多重信号分类算法进行信号处理，得到发射噪声的声源级、频谱结构和方位。

Based on the theory of large eddy simulation and the method of VOF , the initial breakup process of fuel liquid jet, which eject from the nozzle exit at the time scale of micro-second level, is investigated. The mechanism of primary atomization is analyzed, and the initial breakup model of liquid jet is presented. By modeling and numerical simulation of atomization for a diesel nozzle under the given conditions, the initial umbrella-like spray shapes are obtained, which fits better with the experimental results. Meanwhile, the droplets secondary breakup process, such as leeward RT breakup, dumbbell-like breakup and droplets coalescence, etc. are exhibited visually.

基于大涡模拟LES理论和VOF方法，考察了燃油喷雾初始时刻即时间尺度为微秒级的液柱破碎过程，分析了初始破碎的机理，给出了该时间尺度下液柱初始破碎过程的模型；通过对一特定条件下的柴油机喷油器的建模和喷雾过程的大涡数值模拟，获得了液柱初始时刻"伞状头部"的喷雾形态，所得计算结果与相应的试验数据符合较好；数值模拟还直观地展现了液滴背风RT破碎、哑铃型破碎以及液滴的聚集融合等液滴的二次雾化过程。

Analysis and comparison of the model results show that the introducing of gravity wave drag to the model can improve the model performance to some extent and result in more realistic simulation, and the effect of envelope orography on regional climate simulation is less significant than that of gravity wave drag.

通过试验结果的对比分析发现，在模式中引入地形重力波拖曳作用可在一定程度上改善模式对气候系统和要素的模拟效果，使模拟结果更符合气候实况。包络地形对模拟结果也有一定的改善，但对于细网格的区域气候模式来说，其效果不如重力波拖曳明显。

Through the design of AGP-test equipments and methods which could simulate the impact of input of exogenous nutrients on eutrophication, the evolution of algae and aquatic species extinction process in Miyun Reservoir under different environmental and nutritional conditions are simulated. Then the ratio growth rate in the three simulation stages are simulated and analyzed combining the numerical analysis software MATLAB 7.0. At last, the conclusion that in the three designed stage, the total phosphorus threshold which leads to a water bloom in Miyun is respctively 0.053mg/L, 0.062mg/L, 0.064 mg/L is educed. Based on the regression relationship of total phosphorus,chlorophyll-a, total nitrogen, and the transparency,we compartmentalized the evaluation standard level of eutrophication in Miyun Reservoir.

通过设计模拟外源输入对富营养化作用的AGP试验装置和方法，模拟了不同环境条件、营养条件下密云水库优势藻种演变和富营养化过程，结合使用MATLAB 7.0数值分析软件，对3期模拟时段的比增长率进行拟合分析，得出3期设计阶段密云富营养化发生的总磷阈值为0.053mg/L、0.062 mg/L、0.064 mg/L，再根据总磷与叶绿素a、总氮、透明度之间的回归关系，划分了密云水库富营养化的评价标准级别。

The simulation flow of running of hydrometallurgical process is established,and parameters of hydrometallurgical process of uranium are optimized.

运用系统工程的方法，结合试验、生产等经验，通过系统调优的控制因素分析、建立水冶工艺运行模拟流程等方法和手段来进行参数优化，实现了对&饱和再吸附&水冶工艺流程的实际操作模拟、系统调优模拟、在线控制和调优方案制定，并对优化方案效果进行预测。

Is a production, sales agent service companies, Main Products and Services: constant temperature and humidity box; walk-in constant temperature and humidity room; salt spray test chamber; temperature shock test chamber; simulation of motor transport Test Units; Vibration Test Units; Units drop test; tensile testing machine; sclerometer; combustion test machine; electrical appliances and machine attachment test equipment; wire and cable and cable test equipment; microscopy; digital projector; image measuring instrument; coordinate measuring machine; voltage tester; Oscilloscopes; program-controlled variable frequency power supply; EMC instruments

惠尔仪器公司是一家集生产、代理销售为一体的服务性公司，主营产品和服务：恒温恒湿箱；步入式恒温恒湿室；盐雾试验箱；温度冲击试验箱；模拟汽车运输试验台；振动试验台；跌落试验台；拉力试验机；硬度计；燃烧试验机；电器产品附件及整机试验设备；电线电缆及连接线试验设备；显微镜；数字式投影仪；影像测量仪；三座标测量机；耐压测试仪；示波器；程控变频电源；EMC仪器等

In this paper, a large number of tests, theoretical and calculating analyses are made on the acceleration wave propagation law, slipform paving resistance calculation and forming quality analyses of paving slab by single factor experiment, orthogonal experiment, statistical method, computer simulation method, and theoretical analysis and experimental verification.

本文针对混凝土中的加速度传播规律、滑模摊铺阻力和路面摊铺成型质量三个方面，采用单因素试验方法、正交试验方法、数理统计方法、计算机模拟方法、理论分析和试验印证方法，进行了大量的试验、理论演引推导和计算分析。

The results showed that changes of content of saturants, aromatics and asphaltenes were similar during the three kinds of aging test, i.e. the saturants content almost kept invariable, the aromatics content obviously decreased and the asphaltenes content remarkably increased.

本文通过室内模拟加速老化试验（短期热氧老化试验、长期热氧老化试验和长期光热老化试验）和对沥青的四组分分析，研究了沥青在拌和、铺筑和使用过程中光氧、热氧老化机理。

The measurement results of the bridge load testing experiment were heavily influenced by the field environment. Based on the field test results of strain which were affected by simulated outside temperature, it was proposed that the compressed enameled wire could replace the traditional rubberized wire and shielded cable in bridge load testing experiments. This was supported by abundant data collected from the in-situ measurements and the results of these measurements were positive. As bridge-arm lead in the electrical resistance strain testing system, the compressed enameled wire was more stable than the rubberized wire.

摘 要：桥梁荷载试验现场测试环境的变化，对测量结果影响较大，在试验模拟室外温度变化对现场应变结果测量影响研究的基础上，提出采用高强漆包线替代传统的胶质电线、屏蔽电缆应用到桥梁荷载试验中，并进行了多个工程实例，通过大量实测的数据说明高强漆包线替代传统的胶质电线、屏蔽电缆应用到桥梁荷载试验中是可行的，测试效果是明显的。

Forced oscillation test results of rolling table show that the theoretical analyses are good in accordance with test results under condition of the different vertical location of tank within the ship, different water level of wing tanks and different opening of the damping baffle respectively.

结果表明，研制的试验摇摆台能够模拟在波浪作用下船舶横摇运动，设计的被动式U型减摇水舱具有一定的减摇效果；试验确定的水舱固有频率与理论估算值符合；对不同垂直位置布置、不同边舱液位高度和不同阻尼挡板开度情况下摇摆台的强迫振荡试验表明，理论分析与试验结果具有很好的一致性。

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。