The closer the ratio is to 100 percent, the lower the frequency of disk I/O, and therefore the less overhead of reading data.
命中率越接近 100%，磁盘 I/O 的频率就越低，因而读取数据的开销就越少。
2
It includes the concept of stress correction coefficient, a new method to determine the stress concentration factor of mortise of a disk and a new method for correcting the stress ratio.
The result shows that the introduction of the quasi-dipole magnetic field influences the configuration, luminosity and the accretion ratio of the disk.