认为机制砂混凝土磨损过程中，影响耐磨性的主要因素有四个：孔隙、界面、集料和基体。
In the abrasion process of MS concrete, porosity, interface, aggregates and matrix are the basic four factors effect the abrasion resistance.
本文在分析进口锯石机工作原理和工况条件的基础上，根据磨料磨损机理，提出了适于进口锯石机的新型石材锯切砂的选材依据；
This paper proposed the criteria to select qualified abrasives for imported granite—cutting machines on the bases of abrasive wear mechanisms and the working principle and conditions of the machines.
针对印刷中砂目和感光层的磨损，采用因子设计法设计实验，保证了实验的准确性。
For the PS plate grain and light-sensitive coating abrasion, an experiment was designed based on factor design, which ensures the veracity of experiments.
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