期望值

With the new wavefront-driven ablation system by Visx, the Food and Drug Administration clinical trial data (summarized by Colman Kraff, MD on page 4 of this supplement) suggests that 20/20 has now become the baseline expectation.

由VISX公司和美国FDA发起的新的波前导切削系统的临床试验数据(由Colman Kraff博士总结)显示， 20/20 现在已经成为了术后期望值的底线。

The simulation results show that the optimal 2DOF PID controller has good dynamic response performance of both command tracking and disturbance rejection characteristics for the output power of the PEMFC.

仿真结果表明，经优化整定后的二自由度PID控制器，可使PEMFC的输出功率能较好地跟踪给定期望值的变化，同时也可更好地抑制外扰。

The the probabilistic forecasting method of the error between the sample mean and expectation value of the random variable utilizing the central limit theory was researched, then the mathematical formula for the relation between sampling size and variance coefficient of loss of load probability was analyzed. Furthermore, the formulas for the relation between confidence intervals of variance coefficient and sampling size are deduced.

基于中心极限定理深入研究随机变量的样本均值与期望值之间误差的概率预测方法，在此基础上分析失负荷概率(loss of load probability，LOLP)指标的方差系数和样本容量之间的关系表达式，导出方差系数给定时的样本容量置信区间公式及样本容量给定时的方差系数置信区间公式。

A continuous interval argument OWG operator is introduced and applied, together with C-OWA operator, to transforming the incomplete uncertain judgment matrices into the expected value complementary judgment matrices. Then, a method for group decision making with various types of incomplete judgment matrices is developed.

利用连续区间数据有序加权平均子和C-OWG算子等转化途径把不同类型的残缺不确定判断矩阵均一致化为残缺期望值互补判断矩阵，进而提出一种基于不同类型残缺判断矩阵的群决策方法。

Enter tall 3 later, the accretion of the insecurity as study, pressure and exorbitant expectation value, contuse possibly the enthusiasm of student learning and initiative, make student mood dejected, and even pessimistic to the future disappointment.

进入高三以后，随着学习的紧张、压力的增大以及过高的期望值等，都可能挫伤学生学习的积极性和主动性，使学生情绪消沉，乃至对前途悲观失望。

First, we present various new convergence concepts for sequence of fuzzy random variables, including convergence sure, convergence almost sure, uniform convergence, uniform convergence almost sure, almost uniform convergence, convergence in chance measure, and their corresponding weak convergence. Second, the relations among some types of convergence are studied. Finally, we design some algorithms about fuzzy random simulations to compute the mean chance of fuzzy random event, find the optimistic value of a return function, and evaluate the expected value of a fuzzy random variable.

首先，提出了几类模糊随机变量序列的收敛性概念，包括：必然收敛、几乎必然收敛、一致收敛、几乎必然一致收敛、近一致收敛、依机会测度收敛以及与以上概念相对应的弱收敛；其次，讨论了收敛性之间的关系；最后我们设计了模糊随机模拟算法，用于计算模糊随机事件的平均机会，寻找收益函数的乐观值，以及估计模糊随机变量的期望值。

First, we present various new convergence concepts for sequence of fuzzy random variables, including convergence sure, convergence almost sure, uniform convergence, uniform convergence almost sure, almost uniform convergence, convergence in chance measure, and their corresponding weak convergence.

首先，提出了几类模糊随机变量序列的收敛性概念，包括：必然收敛、几乎必然收敛、一致收敛、几乎必然一致收敛、近一致收敛、依机会测度收敛以及与以上概念相对应的弱收敛；其次，讨论了收敛性之间的关系；最后我们设计了模糊随机模拟算法，用于计算模糊随机事件的平均机会，寻找收益函数的乐观值，以及估计模糊随机变量的期望值。

The experiment is designed to determine the optimum mating time of the bitches by studying the changes of the corneous cells in the vagina of the naturally estrous bitches.

而由于良种母犬的配种费用较高，加上犬主人对提高良种母犬繁殖率的期望值较大，特别希望能帮助确定母犬的准确配种时间，以收到更好的繁殖效果，因此，有必要研究母犬排卵时间的鉴定方法。

However, since in most process plants there are hundreds of variables that must be maintained at some desired value, this correction procedure would required a tremendous number of operator.

然而。在大多数的生产过程中有数百的变量必须维持在期望值，这就要求有很多的操作员。

The popular view when discussing urban transportation in American cities today is to decry its sorry state.

人们谈论当今美国城市交通危机的一个原因，或许在于目前的状况未能达到人们的期望值。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。