通过直管噪声与带消声器的尾管声压级的对比，发现在低频段有一峰值。

We make a comparison in tailpipe noise between straight pipe and muffler, it is seen that there is a sharp peak in low frequent.

youdao

由于隧道开挖采用多段微差爆破，所以多数实测爆破地震波中存在多个优势频率峰值，能量带分布很宽。

Multi-millisecond blasting is used in tunnel excavation, so there are several dominating frequency peak values in actual observation blasting seismic, and the energy distribution belt is wide.

youdao

大的峰值会使功率放大器饱和，在子载波间产生交调干扰和导致能量的带外弥散。

These large peaks cause saturation in power amplifiers, leading to intermodulation products among the subcarriers and disturbing out of band energy.

youdao