求翻译：描述电磁波的一个很重要的物理参数是频率。1个波的频率是它的振荡率，国际单位制单位是赫兹（Hz）。每秒钟振荡一次的频率是1赫兹。电磁波可以按照频率分类，从低频率到高频率。按照波长长短，从长波开始，电磁波可以分类为电能、无线电波、微波、红外线、可见光、紫外线、 X-射线和伽马射线等等。普通实验使用的光谱仪就足以分析从 2 纳米到 2500 纳米波长的电磁波。是什么意思？

Describe the electromagnetic wave is a very important physical parameter is the frequency. The frequency of a wave is its rate of oscillation, the International System of Units in hertz (hz). Oscillations per second frequency is 1 Hz. The electromagnetic waves can be classified according to the freq

Description of electromagnetic waves in a very important physical parameters is the frequency. One of the oscillation frequency is the rate that it SI units is Hertz (Hz). oscillations per second at a frequency of 1 Hertz. Electromagnetic waves can be classified according to frequency, from low freq

Describes a very important physical parameter is the frequency of the electromagnetic wave. 1 the frequency of a wave is its rate of oscillation, SI units are Hertz (Hz). Oscillation frequency is 1 Hz per second. Electromagnetic waves can be disaggregated by frequency, from low frequency to high fre