For the effects of test conditions, the volume wear value increased with the sliding velocity and the abrasive grain size except for the sliding velocity of 1.68 m/s and 3.02 m/s. 在试验范围内，对于同一种尺寸的磨料，随着滑动速度的增加，目标包的体积磨损量增加； 当滑动速度为1.
Testing methods for bonded abrasive grain size 砂轮用磨料粒度试验方法
The characteristics of Abrsive products inde the abrasive, grain size and hardness. 磨具的特性、粒度、硬度等。
There is a general decrease in grain size upward. 粒度一般是向上递减的。
Those finished by polishing so as to give continuous polishing streaks by using abrasive of suitable grain size. 以适当粒度研磨材料加工而使表面附有研磨条纹者。