servo action

• 伺服作用

servo action的用法和样例：

例句

1. The servo disk used as a track-aligner in the hard disk drive with high performance plays a critical roll in a magnetic recording system.
   摘要高性能硬磁盘驱动器中的伺服盘面作为磁道的基准件对磁记录系统的性能起著至关重要的作用。