原因二、全距限制(restriction of range),为了能够计算出真正有意义的相关系数,要求每 个变量内各个分数之间必须有足够大的差异,数值之间也必须有显著的分布跨度或变异性...
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Even if caloric restriction extends longevity in people as well as in mice, the extent of the effect remains unclear, though Dr. Weindruch believes the effects will be in the same general range.
即使低卡饮食不仅仅能够延长鼠类的寿命，也能够使人长寿，它的效果依然不确定，虽然Weindruch博士相信效果大致相同。
The claim power of the creditor has no restriction on number, sequence, or range.
债权人的请求权没有人数多少、顺序先后、范围大小的限制。
The range that the expert system solves the problem often gets the narrow restriction of the knowledge field.
专家系统解决问题的范围常常受到知识领域狭窄的限制。
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