Using regression or Delphi method separately to forecast regional auto market has a certain limitation, the combination of both methods can make up respective shortcomings in a great measure and improve forecasting accuracy. 采用回归法或德尔斐法进行汽车区域市场预测具有一定的局限性,但把两者结合起来就可以在很大程度上弥补彼此的缺陷,提高预测准确度。
However, because of the limitation of research methods, previous knowledge on the physiological and pathological significance of AK auto Ab is rather limited, and mechanism of production of AK auto Ab is unclear. 然而,由于实验方法等方面的局限性,以往对于AKautoAb生理、病理意义的认识仍较为有限,而且以往常规的方法无法进行AKautoAb产生机制等关键问题的研究。