查询词典 mathematical expectation

Let the impact loads be transformed into simulated dynamic loads by the use of dynamic load coefficient ,taking this as a foundation the structural optimization mathematical model of ejection seat was established by applying the variable density method.

运用动载系数将冲击载荷转化为拟动态载荷，在此基础上用变密度法建立了弹射座椅结构优化数学模型，提出了冲击载荷作用下弹射座椅的结构优化设计方法，并进行结构优化设计实例计算，得到了能够满足冲击力作用的优化结构。

Text Text is not quite as mathematical as other aspects of computer graphics; instead it is bound to hundreds of years of traditional typography, which many typographers and other observers appreciate as an art.

文本 -文本不像计算机图形的其它方面是十分精确的；代替的它一定要几百年的传统印刷，许多印刷者和其它观察者把它欣赏为艺术。

The mechanical model and mathematical models of dead weight and lever support system on bandsaw were set up.

为揭示杠杆压砣张紧系统的内在本质问题。建立了空载条件下的张紧系统的力学模犁和数学模型。

In mathematical science connections are exhibited which...are extremely unobvious- A.N.

数学学科中证明了……一些极其不显著的联系-a.n。

On reseaching cumulative voting system,the author has mainly used the multi-disciplinary research method, including: the politics knowledge, the mathematical aspect knowledge and profited from in psychology some general knowledge.

在研究公司累计投票制时，笔者主要采用了多学科的研究方法，包括：政治学上的知识、数理方面的知识和借鉴了心理学上的一些常识(具体内容介绍请参照本论文的导言部分)。

The resistivity-temperature curve can be predicted by using this mathematical model, which was in good agreement with the experimental data when the CB volume fraction is close to the critical volume fraction.

利用这个数学模型，还对两种PTC材料的阻温曲线进行了预测，与实测结果比较发现，当炭黑含量在渗流阈值附近时，预测值与实测数据吻合很好。

It is proven by computer simulation and production practice that the mathematical model is correct and the alg...

计算机仿真和生产实践证明，所建立的数学模型是正确的，计算方法也符合实际要求。

By literature, comparative law, then use the mathematical and statistical analysis of the knowledge of the information available for analysis.

本文通过文献资料法、比较法，然后运用有关的数理统计与分析法的知识对所掌握的资料进行分析研究。

In this study, researchers abroad Touring Patrick Bouchet, Anne-Marie Lebrun and Sarah Auvergne, in 2004 the Touring model to explain the consumer experience, as a theoretical basis, the preparation of the questionnaire, were granted to 320 people, Hangzhou, the general public, and the use of SPSS AMOS statistical software mathematical statistics, the construction of the model, the fitting of model verification. Through factor analysis, the connotation that sports tourism, perceived risk and seek the appropriate stimulus, richness and freshness, the environment of space, human space, personal interpretation of nine, and two destinations and sports experience factor, Construction of a separate sports tourism model and the consumer experience sports tourism consumption concept model, and adjusted the comparison model.

本研究将国外体育旅游研究者Patrick Bouchet，Anne-Marie Lebrun和Sarah Auvergne，在2004提出的体育旅游消费者体验解释模型，作为理论基础，编制问卷，随机发放给杭州普通市民320人，运用SPSS和AMOS统计软件进行数理统计，构建操作模型，验证模型的拟合度。

In this paper, the basic mathematical model was derived by means of two methods, the first is the twostar positioning algorithm in celestial navigation theory and the second is based on the gyro dynamics theory. The results from these two methods are identical and therefore are correct. The latitude is equal to the elevation-angle of the polar gyro. The course is the ideal output from the sensor fitted to the outer gimbal. The longitude is a function of the equator gyro's azimuth and elevation angles.

本论文用天文导航中的双星定位法和经典的陀螺力学原理两种方法建立了ESGM的基本数学模型，并且得到一致的结果，说明所建模型是正确的，即载体的纬度等于极轴陀螺主轴相对水平面的高度角，载体的航向等于极轴陀螺外环轴上角度传感器的理想输出，载体的经度是赤道陀螺的方位角和高度角的函数。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。