Qualitative PCR定性PCRqualitativeadj.性质上的；质的；定性的Qualitative Control with Quantitative Models基于定量模型的定性控制Qualitative Theory of Differential Equations微分方程定性理论Qualitative research methods in epidemiology卫生服务研究中的定性研究方法qualitative determination of serum bilirubin血清胆红素定性试验Qualitative Research Requirements Information质量研究要求资料Qualitative and Quantitative Resonance Theory定性及定量共振论qualitative and quantitative recta-synthesis定性定量综合集成Qualitative Personnel Requirements Information合格人员要求资料qualitative determination of serum haptoglobin血清结合珠蛋白测定qualitative standards of accounting information会计信息质量标准

1. Quantitative change is the necessary preparation for qualitative change.
   量变是质变的必要准备。
2. Over time, however, these quantitative changes turn into non-incremental qualitative changes.
   然而，长期以来，量变并没带来质变的递增。