Many experiments on low cut filter were carry out to meet the requirement that balance of high frequency energy and low frequency energy is necessity for high resolution seismic exploration.

根据高分辨率地震勘探对高低频能量均衡的要求，对低截滤波进行了多次试验。

youdao

So, similarly in a case where instead we have a small energy difference, we're going to have a low frequency, which means that we're going to have a long wavelength here.

在这个例子里，能量差较小，我们得到的频率低，这意味这它的波长更长。

youdao

The researchers have devised a method that allows the generation of energy by converting low-frequency vibrations from body movement, heartbeat, blood flow, and the wind into electricity.

这项研究成果可以将人体移动，心跳，血流等低频振动转化为电能。

youdao

So, similarly in a case where instead we have a small energy difference, we're going to have a low frequency, which means that we're going to have a long wavelength here.

在这个例子里,能量差较小,我们得到的频率低,这意味这它的波长更长。

麻省理工公开课 - 化学原理课程节选

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