How to control the attenuation of the beer reasonably and accurately is studied from fermentation control with the quantitative concept.

本文从发酵控制的角度，用“量”的概念阐述了如何合理、准确地控制发酵度的问题。

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This article gives us the quantitative concept of cavity effect, cavity factor, which is depended on the shape and the material of the cavity.

本文从辐射表面之间的换热规律出发，推导出反映空腔效应的定量概念——空腔因子。

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The research can provide a reference for engineering strength prediction of composite joints, and offer a quantitative concept of the various influence factors.

研究结果可对复合材料连接结构的工程强度预测、校核提供算例和参考，并对各参数影响提供定量的概念。

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He introduced the concept of electronegativity which was a measure, therefore, it is quantitative, of the atom's ability to attract electrons within a covalent bond and developed a scale of electronegativity.

他引入了电负性这一概念,一个反映着原子在成共价键时吸引电子的能力的数据标度，因此这是数量上的，在共价电子中,电子原子能吸引电子,并发展为一定规模的电负性。

麻省理工公开课 - 固态化学导论课程节选