effective frequency

基本解釋

It maximizes effective frequency sculpting without harshness or gaping holes in the audio spectrum.
它最大限度地有效頻率無苛刻的漏洞，或雕刻在音頻頻譜。
In most of the conditions, when the average frequency reaches 3 times in 4 weeks, it can form effective frequency.
在絕大多數(shù)情況下，在為期4周的時間內，平均頻次達到3就可以形成有效頻次。
Another source with a 12V battery, a 50HZ effective frequency to avoid interference due to the reduction of power conversion circuits, the entire hardware circuits are more simplified.
另外電源采用了12V蓄電池，有效的避免了50HZ工頻干擾，由于減少了電源轉換電路，整個的硬件電路也更加的簡化。

The insider threat has traditionally been viewed as a high-consequence but low-frequency risk, and many IT organizations have found it challenging to develop effective programs that manage that risk.
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