quiddity

noun

1. 本质；实质
   the real nature of sth

1. The fourth part focus on analyzing the outside management policy and inner management structure, stating the problem and takes to find the quiddity and grasp the stress.
   第四章主要围绕改制后的国有垄断企业的外部治理机制、内部治理结构展开分析，深入论证存在的问题及原因分析，以期抓住实质，抓住重点。
2. The quiddity of the decision making process of US national information security policy is to make a balance between two main methods: opening and controlling.
   美国国家信息安全政策制定过程的实质是决策者决定开放与控制这两种手段相对比重的过程。911恐怖袭击事件的发生使得控制取代开放在美国国家信息安全政策中占据了微弱的优势。
3. The way is simple and visual, the physical thinking of Huygens-Fresnel principle is incarnated fully, it helps to understand the quiddity of single slit Fraunhofer diffraction.
   该方法简单、直观，充分体现了惠更斯-菲涅耳原理的物理思想，有助于更好地认识和理解单缝夫琅和费衍射的实质。
4. Polyethylene glycol ( PEG)/ polyacrylamide ( PAM) phase change materials prepared from the addition of PEG to the acrylamide polymerization system, and the phase change behavior of materials 、 intermolecular interactions and the quiddity of the phase change were investigated.
   通过在丙烯酰胺的聚合反应中加入聚乙二醇（PEG）的方法制备了聚乙二醇/聚丙烯酰胺（PEG/PAM）相变材料，并对材料的相变行为、分子间的相互作用和相转变实质进行了研究。
5. In the second part, I consult a lot of information and talk about the quiddity and function of recitation. Besides, I talk about the factors that affect recitation and some theories that this paper based on.
   第二部分通过查阅资料阐述了背诵法的实质与作用，分析了影响背诵的因素并讨论与本文相关的理论基础。
6. The new 3R principle is put forward by analyzing the quiddity of reduce of mining circular economy. It is suggested that with the Recovery to replace the Reduce in mining circular economy according to the present situation of which the minerals demand is bigger than supplies in China.
   根据我国目前矿产品需求大的现状，分析了矿业循环经济减量化的实质，提出了用高回收（Recovery）代替减量化（Reduce）的矿业循环经济新3R原则。

noun

1. the essence that makes something the kind of thing it is and makes it different from any other

   Synonym:    haecceity

2. an evasion of the point of an argument by raising irrelevant distinctions or objections

   Synonym:    quibblecavil