查询词典 mean terms

The analytical method is always used due to the large amount of the objects and not very high accuracy of forecasting. A method based on the position and velocity derived from the mean orbit elements directly is given, which is to avoid the problem of singularity in calculating the periodic terms of orbit elements variation, thus the process and software can be simplified.

在已有分析法得到t时刻平均根数的基础上给出一种轨道预报方法，由t时刻的平均根数给出该时刻卫星的位置和速度，在此基础上将地球非球形引力摄动的周期项直接用卫星直角坐标的位置和速度分量表示，这样可以避免在计算轨道根数变化的周期项时出现的奇点问题，从而对根数的选择无特殊要求，可适用于各种轨道，简化预报程序和相应的软件，提高预报效率。

Does this mean we've reached a plateau in terms of speed?

这是否意味着我们已经到了速度发展的一个平台期呢？

The value of the principal terms of always mean meaningful, but the main range is different, so the main value is likely due to the size and scope of showing a "Community" and "Si Yi" and the resulting in the social life of the value of sequence The distinction.

价值对主体而言总是意味着有意义，但主体的范围是不同的，因此价值就有可能因主体的范围大小而呈现出"公益"、"私益"以及由此而来的在社会生活中的价值序列上的区别。

In our terms, this would mean that the greater the attraction, the greater the identification, and consequently the greater the referent power.

这样的条件下，代表更大的吸引力，更大的声望，及更大的参照权。

The superiority of a class of linear estimator with respect to generalized least square(GLS estimator of regression coefficients was studied in terms of the mean square error matrix(MSEM criterion, and the lower bound and super bound of three relative efficiencies were obtained respectively.

在均方误差矩阵准则下研究了回归系数的一类线性估计相对于广义最小二乘估计的优良性问题，并讨论了三种不同相对效率的上、下界。

In chapterⅡ, considering GLMMs data which the number of high units is different and the number of low units is small and unbalanced, we Conduct a series of simulations, the simulations show that regardless of the number of the level 2 units,the Bayesian estimate of random effects residual variance is more precise than PQL and the PQL estimation deviates from the true value seriously; In terms of the fixed effects estimates, When the number of level 2 units is 20, The mean and median of the Bayesian estimate is more precise than PQL,But With the number of level 2 units increase,the estimate of two methods is similar. Thus, in practical applications, we recommend the use of Bayesian method.

第二章针对不同高水平单位数，低水平数较小且不平衡的GLMMs数据，进行模拟研究，研究表明：无论水平2单位数的大小，贝叶斯方法随机效应残差方差估计值远比PQL法更接近真实值，PQL法严重偏离了真实值；而对固定效应参数估计值，当水平2单位数为20时，贝叶斯法各参数的均数和中位数均要较PQL法更接近真实值，而随着水平2单位数的增加，两种方法在估计固定效应参数时相差并不大，因而，在实际应用中，推荐采用贝叶斯法。

In addition, compared with the conventional approach, the proposed method gives a better prediction, both in terms of coefficients of determination and root-mean-square error.

此外，相较於传统的分析方法，由判定系数与误差均方根亦可看出，类神经网路模式具有较佳的准确度。

Inacademia, sabbatical leave can mean a break between terms during which professors stop teaching in order to focus on academic research.

在学术界，公休假可以表示学期间的休息，教授在此期间暂停教学转而关注学术研究。

Just having a green roof may not mean anything in terms of preventing water from reaching the street level.

仅仅有了绿色的屋顶并不意味着完成了防止雨水进入街面的术语所包括的所有事情。

Because of the error in this approximation by a fraction , and because of the higher-order terms in the polynomial for the moment of mean syzygy, the accumulator needs to be corrected by subtracting 1 once every 65 years or so.

由于在逼近时的误差只会出现在分数上，并且是此刻的平朔望多项式展开的高阶项目，累加器大约要经过65年才需要予以更正减除一天的误差。

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。