normal frequency

• 正常频率,标准频率,额定频率

normal frequency的用法和样例：

例句

1. The compressor of frequency conversion air conditioning is not to work all the time it is under standard frequency, can be accelerated according to need or decelerate speed.
   变频空调的压缩机不是一直工作在标准频率之下，可以根据需要加快或者减慢速度。