以往对品牌延伸效果的评价大多采用定性分析，主观性强，难以消除人为因素的影响。
The appraisal of brand extension has been carried through by the way of qualitative analysis before, which makes it difficult to eliminate the influence of contrived factors.
第三，品牌联想类型、延伸距离以及产品涉入度之间存在交互作用，共同对品牌延伸效果发生作用。
Third, there is an interaction among brand association types, extension distances and involvement. The three independent variables exert their influences on brand extension effect together.
较为温和的计划，比如延伸尼罗河三角洲运河分支，效果要好的多。
More modest plans, such as the extension of branch canals in the Nile delta, have worked much better.
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