局部磨损 meaning in Chinese

concentrated wear
localized wear

From the experimental results , conclusions of particles " trajectories can be drawn for different densities and operating conditions . three axis segments were acquired , and three operating conditions were picked to study the distribution traits of particles inside the impeller under the different quality and concentration of the particles . based on the results , local wear of pump was forecasted and protecting measures were brought forward
得到运行工况对单个粒子运动轨迹的影响以及不同密度(质量)的单个粒子运动轨迹变化规律；沿水泵叶轮轴向取三个测量断面，分别在三种不同运行工况下，研究各个断面间(内)粒子分布特征，以及粒子质量和浓度对这种分布特征的影响；根据实验结果，对输送不同固液两相流介质时，水泵局部磨损进行了预测并提出了一些防护措施。