frequency domain model reduction method 频域模型降阶法 ; 频域模型降价法 ; 频域模子落价法 ; 芃
frequency reduction 减少班次
low frequency reduction furnace 工频感应电炉
Changing volume ratio of the two-chamber muffler can improve the effective noise reduction frequency range of the muffler.
通过改变消声器的两腔容积比，可以改善消声器的有效消声频率范围。
This setting can be set to a value between 1 and 1000 which will result in a 0.1 percent to 100 percent reduction in frequency.
这个设置可以设置为1到1000之间的值，这会使频率下降百分之0.1到百分之百。
The good news, the editorial writers say, is that women in the placebo group experienced about a 30 percent reduction in severity and frequency of symptoms during the 12-month follow-up period.
好消息是，社论作者说，安慰剂试验组的妇女在12个月的随访期间，频繁和严重的症状减少了30%。
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