查询词典 test at random

The dynamic characteristics of stochastic truss structures and stochastic frame structures are analyzed by using Random Factor Method. Then, from the expressions of structural random response of the frequency domain, the computational expressions of the mean value, variance and variation coefficient of the mean square value of the structural displacement and stress response under the stationary random excitation or non-stationary random excitation are developed by means of the random variable's functional moment method and the algebra synthesis method.

考虑压电智能桁架结构物理参数、几何参数、结构阻尼和外荷载、闭环系统控制电压分别或同时为随机变量，构建了结构在随机力作用下的动力响应分析模型，提出了求解方法，推导出结构动力响应随机变量的数字特征计算表达式，通过算例验证了所建模型和所提求解方法的正确性和有效性。

Random recursive set; random self-similar set; random sub-self-similar set; random walk in random environment; skew product Markov chain; frac-tal set

随机递归集；随机自相似集；随机次自相似集；随机环境中随机游动；绕积马氏链；分形集

The invention discloses a rotary bending corrosion fatigue test device. The device includes a rotary bending fatigue test device and a corrosion liquor supplying system; wherein, the rotary bending fatigue test device is used for mounting a test piece and applies bending load on the test piece during the process of driving the test piece to rotate and realizes the test on the fatigue data of the test piece. The corrosion liquor supplying system includes a liquor storage tank, a transfusion pump, a flow adjusting valve and a connecting pipeline. The corrosion liquor supplying system feeds the corrosion liquor to the test piece during testing in real time from an output opening.

本发明公开了一种旋转弯曲腐蚀疲劳实验装置，该装置包括旋转弯曲疲劳实验装置及腐蚀液供给系统，其中，旋转弯曲疲劳实验装置用于试件的装卡，并在驱动试件旋转过程中对其施加弯曲载荷，以及实现对试件疲劳数据的测试；腐蚀液供给系统包括储液罐、输液泵、流量调节阀及连接管道，腐蚀液供给系统通过其输出口实时向测试中的试件输送腐蚀液。

With the development of IT,the IT intra-industry will have higher demand about the software quality.this will absolutely attach importance to test of software.with the IT research and development and instrument,accompanying software engneering and software engneering practices further promotion,software test will be gotten more attention and specialized.the instruments will increase the progress of test,also can put the control and administration into the process of test.under the help of funtional test of data-driven of automatic test intruments,we can increase the coverage of the test,also can save more time and capital for corporations.because of continuous improvement of the process of software development,the continuous software integraton and automation of software test will be absolutely inevitable,also have more and more effects.different technology and research and development circumstances will have different requirements about how to automatize,so it hase more space deserved to research.

随着信息技术的不段发展，行业内对软件的质量要求越来越高，这必然引起对测试工作的重视，随着软件开发技术和工具的提高，软件工程和软件工程实践的推广，软件测试日益得到重视和专业化。工具能够加快测试的进度，可以把控制和管理引入整个测试过程。通过对自动化测试工具的数据驱动来进行功能性的测试，可以提高测试的覆盖率，并且可以为企业节省大量的时间和资金。因为软件开发过程的持续改进，软件项目的持续集成与测试自动化的发展是必然的，其作用也将越来越明显。不同的技术和开发环境对测试如何自动化有不同的要求，所以还有很多值得研究的地方。

The products samples came from Guangdong Entomological Institute. The test was made according to the national standards of the People's Republic of China (GB 15670-1995) in Toxicological Test Methods of Pesticides for Registration. SPF SD mice were used to made the peroral toxicity test and percutaneous toxicity test. There were ten mice (including 5 female rice and 5 male rice) in each group. New Zealand rabbits were used to make the eye irritation test and skin irritation test, with 4 rabbits in each test. FMMU albino guinea pigs were used to make the hypersusceptibility test, with 13-20 guinea pigs in each group.

方法］产品样品来源于广东省昆虫研究所，根据中国人民共和国国家标准GB15670-1995《农药登记毒理学试验方法》进行试验，试验使用SPF级SD大鼠，用于经口、经皮毒性试验，每组10只，雌雄各半；新西兰白兔，用于眼刺激和皮肤刺激试验，每试验4只；FMMU白化豚鼠，用于致敏试验，每组13~20只。

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

The main products TQSW no local place-frequency electrical impulse voltage testing transformer test sets of series resonant frequency generator unit test transformer dry-type high-voltage testing transformer the ball-gap discharge frequency divider DC High-frequency DC generator, generator, inverter-current multi-function grounding impedance test system-current generator (up-flow device) performance of an integrated test bed Transformer Partial Discharge Detector mechanical properties of high-voltage switches Vacuum Tester Tester Tester Loop Resistance transformer capacity Tester-Load Switching Test Transformer tumor resistance measurement Transformer turns ratio tester tester MOA group tester insulating oil dielectric strength tester transformer loss parameter Intelligent Tester transformer loss-line parameter tester frequency interference dielectric loss dielectric loss tester anti-interference relay tester Ground Yin Xiaxian conduction tester cable fault tester tester tester generator rotor impedance large Grounding Resistance Tester Tester transformer features an integrated micro-moisture meter aperture automatic flash point tester Automatic Closed flash point detector vacuum oil filter boots pressure test device (automatic, semi-automatic) nuclear phase Instrument Series wireless digital core Instrument security tools relative to the mechanical properties testing machine clamp grounding resistance of grounding resistance measuring instrument digital megger digital high-voltage insulation resistance tester and a scalable high-altitude test tools, digital dual-phase volt-ampere facade sequence table clamp Three-phase Power Parameters Tester Calibrator lightning strike counter dedicated test wire, clamping insulation boards, pipe, cable tray mats polyimide film conductor line busbar electric appliances

扬州市苏博电气有限公司扬州市苏博电气有限公司主要产品有TQSW无局部放电工频试验变压器冲击电压发生器变频串联谐振试验成套装置试验变压器干式试验变压器高压分压器放电球隙中频直流发生器高频直流发生器变频大电流多功能接地阻抗测试系统大电流发生器变压器性能综合测试台局部放电检测仪高压开关机械特性测试仪真空度测试仪回路电阻测试仪变压器容量测试仪变压器有载开关测试仪变压器肿瘤电阻测试仪变压器变比组别测试仪氧化锌避雷器测试仪绝缘油介电强度测试仪变压器损耗参数智能测试仪变压器损耗线路参数综合测试仪变频抗干扰介质损耗测试仪抗干扰介质损耗测试仪继电保护测试仪接地引下线导通测试仪电缆故障测试仪发电机转子交流阻抗测试仪大型地网接地电阻测试仪互感器特性综合测试仪微量水分测定仪开口闪点全自动测定仪闭口闪点全自动测定仪真空滤油机绝缘靴耐压试验装置核相仪系列无线数字核相仪安全工具力学性能试验机钳形接地电阻仪接地电阻测量仪数字兆欧表数字高压绝缘电阻测试仪可伸缩高空测试工具数字双钳相位伏安表相序表三相电力参数测试仪雷击计数器校验仪专用测试导线，钳绝缘板，管，垫聚酰亚胺薄膜电缆桥架滑触线母线槽电热电器

Signalmen who have worked for more than one year and 70 new telegraph operators are subjected to Pattern Number Coding Ability Test, Ravens Progress Matrices, Memory Span Test, Distribution of Attention Test, Knocking Board Test, Choice Reaction Time Test, Action Speed Test, Action Stability Test, 16PF Test, Cornell Medical Index, SAS and SDS. hi the meanwhile their supervisors appraise the performance levels based on five grades from 5,4,3,2 and I .

研究对象为某军区工作1年以上的通信专业技术人员469名，另有作为预测效度检验的报训队新兵70名，分别接受图形数字编码能力测验、瑞文标准推理测验、记忆广度测验、注意分配测验、敲击板测验、选择反应时测验、动作速度测验、动作稳定性测验、卡特尔16PF测验、康奈尔测验、抑郁自评量表测验、焦虑自评量表测验；同时进行专业水平评价。

The author discussed the vice of pseudo random number generators just mentioned above and reviewed the tests of random numbers, such as parameter test, uniform test, independent test, etc. The article also introduced the industrial test programs: Diehard, Crypt-X, ENT, NIST FIPS 140-1 and SASD.

本研究讨论了算法随机数生成器的缺陷，回顾了目前随机数的检验方法，如参数检验、均匀性检验、独立性检验和组合规律检验等，简要介绍了常用的工业检验方法—Diehard、Crypt-X、ENT、NIST FIPS 140-1和SASD。

It also gives the definitions and stochastic properties of pure random process, random walk process and AR(1) autoregressive process, and analyses the simulative data of three typical random processes using wavelet analysis, frequency spectrum analysis and time-correlation analysis. The stochastic properties of time series and the trend component, the time length of time-correlation and the properties of main frequency of these three typical random processes are summarized as the templates for further research.

给出了包括纯随机过程、随机游走过程和 AR(1)自回归过程等在内的基本随机过程的定义和统计特征，并运用小波分析，时间相关和频谱分析对这三种基本随机过程的模拟数据进行分析，归纳出它们在时序上的随机特征、低频信号趋势项特征、时间相关的长短以及主频信号的位置等特点，作为研究 GPS 接收机误差和多路径效应的随机特征的模板。

He got into race cars, while my father liked go-karts more, so I didn't really pay attention to what Diego was doing, as I was just racing karts.

叔叔开的是跑车，而我父亲更喜欢越野卡丁车，所以我并不太关注Diego在做什么，我仅仅在跑我的卡丁车而已。

She is at present gone to look for the best nectar and ambrosia to regale me this evening.

她今晚为款待我，现在又去准备美酒佳肴去了。