variable frequency

常见例句

So, NIRVANA can say is the only true sense have speed of variable frequency drive screw air compressor.
所以，NIRVANA可以说是目前惟一真正意义上拥有调速变频驱动的螺杆空压机。
Such as variable frequency drives can be further connected directly to the communications network or hardwired if necessary.
例如变频驱动器如果有必要的话可以直接被连在通讯网络或硬线上。
A variable frequency inverter with a RS-485bus communication interface is designed. It has the advantages of simple hardware interface and high reliability of communication.
设计了一种带有RS-485接口的交流变频控制器，它硬件接口简单，通讯可靠性高。

For example, rather than purchase expensive ultra-efficient motors, low cost opportunistic additions to old fans and pumps such as variable frequency drives and demand controls can deliver equal energy savings at a fraction of the cost.
FORBES: Log Baby Log: The Race to The Big New Resource Play You Haven't Heard Of