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1)  standby selected aggregate
备择集
2)  alternative set
备择集合
3)  continuous evaluation's et
连续备择集
4)  quality of alternatives
备择
5)  equipment selection
设备选择
1.
According to the characteristics of the spandex fiber processing, presents designs of the compressed air system, nitrogen system, chilled water system and equipment selection in the mechanical power house of the plant.
针对该氨纶工程生产工艺特点 ,介绍了其动力站压缩空气系统、氮气系统、冷水系统等系统设计及设备选
2.
According to personal realization of design, the author compares and analyzes old and new heating method on views of systematic features, heat load calculation and equipment selection.
近年来建设部《民用建筑节能管理规定》的实施,原有旧的住宅采暖方式已不能满足现有的设计要求,笔者根据设计上的体会,对旧采暖方式和新的采暖方式从系统特点、热负荷计算、设备选择等进行了分析比较。
3.
Some fuzzy methods rise due to complexity of equipment selection process.
企业组建动态联盟,首先就面临着设备选择问题。
6)  alternative hypothesis
备择假设
1.
According to the basic principle of hypothesis testing,three kinds of one sided hypothesis testing with the same reject region at the same significant level α are given and how to choose primary hypothesis and alternative hypothesis at the actual application and correlation are also pointed out.
根据假设检验的基本原理 ,给出 3种单侧假设检验在相同的显著性水平下具有相同的拒绝域 ,并指出在实际应用中如何选择原假设和备择假设及其相互关系 。
2.
In single-side hypothesis testing,the exchange of the null hypothesis and alternative hypothesis would induce two different testing results sometimes.
在单侧检验中,有时由于交换原假设与备择假设,会得到两个不同的假设检验结果。
补充资料:备择假设
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性质:通过检验表征总体分布特性的数字特征平均值和方差对样本进行统计检验以确定各样本是否来自同一总体时,需事先做出两种统计假设。以检验平均值为例,一种是假设它们来自同一总体,该假设记为H012;另一种是假设非来自同一总体,此假设记为H11≠μ2。因为在检验时总是先假设是来自同一总体,因此将H0称为原假设。只有在根据样本值进行检验的结果,在一定置信度下与原假设v0有显著性矛盾时,才代之以接受另一假设H1,故将H1称为备择假设。

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