The term expectation value is often used instead of average value.
期望值这个名称常用来代替平均值。
This is reflected in the fact that the vacuum expectation value of the field squared is nonzero in quantum field theory. Therefore there exist the so called vacuum fluctuations.
这反映在量子场论中场量平方的真空平均值不为零，这就是所谓的真空涨落。
In the quantum statistical theory, the density operator is introduced in the statistical system. The expectation value of an obeservable can be obtained by the use of the density operator.
在量子统计中，对统计系综引入了密度算符，力学量的平均值可以利用密度算符求出。
A weighted critical path algorithm was provided to calculate the expectation value of the workflow's duration, record the process of reduction, and identify the time-oriented critical path.
通过加权关键路径算法，可以计算工作流完成时间的期望值及记录约简过程中的中间结果，从而确定工作流模型的关键路径。
Optimal maintenance policy problem in a system is discussed and analysed in this paper. Due to the random variable concerned, one objective mathematical model of expectation value is developed.
本文讨论了系统的最优维修策略问题，考虑到题目中所涉及的变量大多为随机变量，我们建立了单目标的期望值模型。
Discusses the consulting organization's expectation value, user's expectation value and the real exchange price of information consulting service.
对咨询服务价格的咨询机构期望值、用户期望值和实际交换价格进行讨论。
Build mathematical model of quantitative analysis, confirm the expectation value of light intensity, build standard work curve, improving analysis precision.
建立定量分析数学模型，确定光强值，建立标准工作曲线，提高分析精度。
A too high expectation value could cause unbearable huge pressure on people, which will exhaust people's body and spirits, harm people's physical and psychological health, and their life quality.
太高的期望值会给人造成难以承受的巨大压力，使人身心疲惫，严重损害人的身心健康，从而损害生活质量。
A too high expectation value could cause unbearable huge pressure on people, which will exhaust people's body and spirits, harm people's physical and psychological health, and their life quality.
太高的期望值会给人造成难以承受的巨大压力，使人身心疲惫，严重损害人的身心健康，从而损害生活质量。
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