测试来自正态分布的随机抽样。
文中改进了测试性验证中的正态分布法，通过添加试验前计算，完全消除试验后计算，直接给出抽样方案。
In this paper, the normal distribution method is improved as it presents directly the sampling plan by adding calculation before test and completely removing after - test calculation.
在假设总体服从正态分布的条件下，设计了抽样区间，样本容量和控制限都变化的全变化参数的中位值-极差联合控制图。
Under population follow normal distribution hypothesis, designing combine median-range adaptive control charts with variable sampling interval, variable sample size and variable control limit .
沥青混合料沥青含量抽样检测的样本检测值服从正态分布。
The inspecting value of sample for asphalt content sampling of asphalt mix is normal distribution.
分析和实际模拟表明，在以正态分布进行抽样的前提下，应用优化的参数，可使抽样效率进一步提高。
Theoretical analysis and the actual simulation all indicate that the sampling efficiency can be increased significantly by using these optimum parameters.
分析和实际模拟表明，在以正态分布进行抽样的前提下，合理选取抽样样本平均值和标准差，可使抽样效率进一步提高。
Theorical analysis and practical simulation indicate that if the samples are of normal distribution, the modelling efficiency can be increased further by using sensible parameters.
在综合双侧规格限下研究方差未知的正态分布产品可靠性抽样检验方法。
This paper studies reliability sampling inspection method for items whose quality characteristic has a normal distribution with an unknown variance under double combined specification limits.
在综合双侧规格限下研究方差未知的正态分布产品可靠性抽样检验方法。
This paper studies reliability sampling inspection method for items whose quality characteristic has a normal distribution with an unknown variance under double combined specification limits.
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