A market is often stratified and unidimensional, and many such stratified unidimensional markets put together make a multi dimensional market.(市場存在分層的平面市場現象，分層平面市場疊加形成立體市場。)

This article adopts unidimensional optimization method to optimize the design, and optimum parameter can be attained.(筒尺寸進行優化設計，確定其最佳工藝參數。)

Some constructs might be unidimensional while others might tap to a number of distinct facets.(有些構造可能是單維的，而另一些則可能發掘到不同層面的數目。)

As numerous complex factors that influence poverty and environmental degradation existed, so poverty-environmental linkages cannot be reduced to simple unidimensional cause-effect relationships.(由于有許多復雜的因素在它們之間發揮著作用，所以，貧困與環境的聯系不能被簡單認定為一維的因果關系。)

Conclusion multidimensional IRT is more appropriate than unidimensional IRT for the analysis and evaluation of multidimensional and short scale.(結論多維irt更適合于條目數較少的多維量表的分析和評價。)