磨擦阻力 meaning in English

friction drag
friction resistance
frictional resistance

Low friction coefficient between pcd diamond and steel materials reduces frictional resistance during bearing processing , thus enhances bearing processing precision
Pcd金刚石和钢铁材料的磨擦系数低、减少了轴承加工的磨擦阻力，提高了轴承的加工精度。
The papers also brings forward the design parameters of the material critical suspending speed and the wind capacity according the theory of the air transportation , analyses and build up the condition of material diameter and airflow speed of the gas - solid current locating the separating interface
论文根据气力输送理论求出螺旋气力吸取料装置物料的悬浮速度及风机风量的设计参数，分析确定位于分离界面处的气固二相流处于层流状态即处于粘性磨擦阻力区的粒径条件与气流速度条件。