The fundamental knowledge about ingredients, classification and performance evaluation of greases is introduced.
介绍了润滑脂的组成、分类和性能评价的基本知识。
This paper presents flush joint casing classification, structural feature, technical difficulty in design, performance and evaluation, main advantages and application.
文中介绍了无接箍式套管的分类、结构特征、设计的技术难点、性能和评价方法、主要优点和应用情况。
The research on thermal mass conception, theory, classification are presented, and the performance influence factors are analyzed. The evaluation parameters are described for its effect.
本文从蓄热体的蓄热原理出发，指出了蓄热体的正确概念、分类、作用原理及其影响性能发挥的因素，分析比较了多种蓄热效果评价参数。
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