qualitative difference between A and B
强调区别在于性质而非数量，常用 between 引出比较对象。
There is a qualitative difference between the two teaching methods.
这两种教学方法之间存在质的区别。
定性分析的；基于某种质量而非数量的描述或区别；基于质量的区别；一种分析形式,得出化合物的身份；涉及基于质量的比较
relating to qualities rather than quantities
基于某种质量而非数量的描述或区别
Of descriptions or distinctions based on some quality rather than on some quantity.
基于质量的区别
involving distinctions based on qualities
一种分析形式,得出化合物的身份
Of a form of analysis that yields the identity of a compound.
涉及基于质量的比较
relating to or involving comparisons based on qualities
The researcher collected qualitative data through interviews rather than numbers.
研究人员通过访谈而不是数字收集了定性数据。
用法提示：qualitative 作定语修饰 data，表示基于性质的、非数量的。
AI contextual example
There was a qualitative difference in taste between the two coffees.
这两种咖啡在味道上存在质的差异。
用法提示：qualitative 作定语修饰 difference，强调性质上的区别。
AI contextual example
The test gives a qualitative result, showing the presence of the substance.
该测试给出定性结果，显示该物质的存在。
用法提示：qualitative 作定语修饰 result，表示分析是定性的。
AI contextual example
强调区别在于性质而非数量，常用 between 引出比较对象。
There is a qualitative difference between the two teaching methods.
这两种教学方法之间存在质的区别。
多用于学术语境，指基于性质、特征而非数值数据的分析。
The team carried out a qualitative analysis of the interview data.
团队对访谈数据进行了定性分析。
与 quantitative research 相对，强调非数值化的研究方法。
She is known for her qualitative research on small communities.
她以对小社区的定性研究而闻名。
用于对比，强调事物的性质方面而非数量方面。
The feedback we received was qualitative rather than quantitative.
我们收到的反馈是定性的，而非定量的。
grammar · medium
易错句子The qualitative of this product is very good.
正确表达The quality of this product is very good.
qualitative 是形容词，不能作名词或主语；表示“质量、品质”的名词是 quality。原句主语中心语应为名词，故用 quality。
grammar · medium
易错句子The researchers used qualitative methods to measure the exact temperature.
正确表达The researchers used quantitative methods to measure the exact temperature.
quantitative 表示“定量的”，用于测量数值、数量；qualitative 表示“定性的”，用于描述性质、感受等非数值信息。温度是数值数据，故应用 quantitative。
定性研究
She specializes in qualitative research on classroom interaction.
她专门从事课堂互动的定性研究。
定性分析
The lab used qualitative analysis to identify the compound.
实验室用定性分析来确定这种化合物。
定性数据
The interviews produced rich qualitative data.
这些访谈产生了丰富的定性数据。
本质上的差别；质的差异
There is a qualitative difference between the two approaches.
这两种方法之间存在本质上的差别。
质变
Years of practice brought a qualitative change in her playing.
多年的练习让她的演奏发生了质变。
定性评估
Teachers gave a qualitative assessment of each student's progress.
老师们对每个学生的进步做了定性评估。
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