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Based on the invariance of maximum likelihood estimation, the sufficient and necessary condition under which the maximum likelihood estimation has invariance for the parameters are given, then it uses this conclusion to calculate the maximum likelihood estimation of σ^2 and ρ for bivariate normal distribution.

根据参数极大似然估计不变性原则，给出在一定条件下极大似然估计具有不变性的充分必要条件，并利用该结论计算了二元正态分布Z=的未知参数σ^2和ρ的极大似然估计值。

Based on observed and hindcast data, a bivariate Pearson Ⅲ distribution is adopted to calculate the joint probability of extreme wind velocity and wave height.

本论文以观测和后报资料为基础，针对我国渤海某区的特点，将二维皮尔逊Ⅲ型分布用于极值风速与波高的联合概率计算，综合比较多种统计模式所求得的设计荷载，对我国边际油田开发的环境条件设计标准提出建议。

This paper introduces different signal block modes and the method which was used to calculate tracking intervals between trains, and establishes simulation system for multi-train tracking. A case was designed for analysis.

介绍了城市轨道交通不同信号闭塞方式及其追踪列车间隔时间的计算方法，建立了多列车追踪运行的仿真系统，并进行了算例的设计。

We calculate a blockade percentage; this then affects the prices of goods inside your country.

我们封锁的百分比计算，这进而影响你的国家内的商品价格。

Company or group, because their hand within has a plenty of resource and capital, even a station, pages of all his 2 grade domain name are OK PR is as high as 4, 5, page of a few 2 class in a station, calculate mutual join, it is special bloodcurdling.

公司或者团队，正是由于他们手里头有的是资源与资金，甚至一个站，他的所有二级域名页面都可以PR高达4、5，一个站里几十几百个二级页面，就算相互连接，都是非常恐怖的。

On the basis of slip-diffusion model of multiphase flow, a three-dimensional mathematical model of gas-particle flow in blowpipe has been developed and debugged to calculate the gas-solid two phases flow, including gas velocity and particle velocity inside the blowpipe.

运用多相流的拟流体模型建立了高炉局部富氧喷煤直吹管内气粉两相流动的数学模型，对气粉两相流场进行了数值研究，探讨了气相和煤粉的速度分布规律及其影响因素，其中包括氧-煤喷枪的结构、漩流数和富氧率等。

In order to reduce the error of a remote sensing area sentencing in two-stage survey of investigations, this article used the Bo'ai County state-owned tree farm partial remote sensing TM satellite picture and the correlation data establishes the visual solution to symbolize that, according to the solution which established translates the symbol to the place thing to carry on the remote sensing to interpret,cancelled in the room draws each place kind of boundary, extracted on the chart with the polyester membrane the area, may calculate according to the proportion interprets the area ,figured out interprets the area, simultaneously in order to enhance interprets the precision to obtain a more real reliable material, investigated 90 bottom classes in kindergarten's area from the location, and interpreted to these 90 bottom classes in kindergarten on the chart obtains the corresponding area,simultaneously established the linear model.

为了减少二类调查中遥感地类面积判读误差，本文利用博爱县国有林场部分遥感TM卫星图片和相关资料建立了目视解标志，根据所建立的解译标志对地物进行遥感判读，在室内勾绘出各地类边界，用聚酯膜求出图上面积，根据比例计算出判读面积，同时为了提高判读精度得出更加真实可靠的资料，从现地中调查了90个小班的面积，并对这90个小班在图上判读得出相应的面积，同时建立线性模型。

Beside, Wii Balance Board can measure user's weight and center of gravity, and subsequently calculate body mass index after entering user's height.

旁边， wii平衡，董事会可以测量使用者的重量和重心，并随后计算身体质量指数后，进入用户的高度。

Li Moshou expresses, although first entry,do poineering work board industry measure does not calculate too much, but in exterior economic situation adverse circumstance falls, the development that supports new and high enterprise, medium and small businesses criterion action is major.

李万寿表示，虽然首批登录创业板企业数量不算太多，但在外部经济形势不利的情况下，支持高新企业、中小企业的发展则作用重大。

Monte Carlo simulation to calculate European option pricing, more accurate but time-consuming bogey great.

蒙特卡洛模拟来计算欧式期权的定价，更忌精确但是耗时很大。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。