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1·Marconi was the first to develop and perfect this system, using the recently discovered airwaves that make up the electromagnetic spectrum.

马可尼是第一个开发和完善这一系统的人，他使用了最近发现的构成电磁谱仪的“空气波”。

2·Number of Stars; Electromagnetic Spectrum Limit.

恒星数、 电磁波谱极限。

3·Color is a visual portion of the electromagnetic spectrum.

颜色是电磁频谱的一个视觉部分。

4·Wireless networking operates in the electromagnetic spectrum.

无线网络工作在电磁频谱中。

5·Methods span the electromagnetic spectrum from X-ray to microwaves.

方法包括电磁谱从X射线到微波。

6·RADIOS work by using the electromagnetic spectrum to send information.

无线电通讯通过电磁频谱递信息。

7·By invisible I mean it doesn't absorb in the electromagnetic spectrum.

不可见，我指的是它不吸收地磁波谱。

8·The electromagnetic spectrum characteristics of ICECM has been reported.

本文报告了该系统自发辐射的电磁频谱特性。

9·The electromagnetic spectrum covers an enormous range of frequencies and energies.

它包括了在该范围上相位谱应为直线的规定。

10·The filters cover various wavelengths over the ultraviolet, blueand red portions of the electromagnetic spectrum.

三个滤镜覆盖了电磁光谱的紫外、蓝和红部分的波长。