This paper discussed direct and indirect effects of building materials on the indoor air quality, and further provided the evaluation principles and methods.
文章对建筑材料对室内空气品质的直接和间接影响论述，并在此基础上提出了建筑材料对室内空气品质的影响的评价原则及方法。
The antifoaming principles of antifoaming agents were analyzed in theory, and the selection principles and evaluation methods were described.
从理论上分析了消泡剂的消泡原理，概述了消泡剂的选用原则及评价方法。
This paper briefly introduces the principles and methods of the data mining and the rough set theory, and gives an example on the diagnosis and evaluation of the lung tumor.
本文简要介绍了数据挖掘技术的基本原理和主要方法，以及粗糙集理论的基本原理，并给出了一个利用数据挖掘技术对肺部肿瘤进行诊断评价的应用实例。
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