variable freguency drive technology

• 变频调速

variable freguency drive technology的用法和样例：

例句

1. The maturing of variable frequency technology becomes an assurance for the reliable operation of a trolley type scraper.
   变频调速技术的成熟是滑线式铲运机可靠工作的保证。
2. The development of the microprocessor and microelectronics lead to the increasing maturing of the variable frequency control systems.
   微处理器和微电子技术的发展，使变频调速控制系统日趋成熟。