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词汇 electromagnetic-radiation
释义 electromagnetic radiation
noun[ U ]
 physics specializeduk /i.lek.trəʊ.mæɡˌnet.ɪk reɪ.diˈeɪ.ʃən/ us /i.lek.troʊ.mæɡˌnet̬.ɪk reɪ.diˈeɪ.ʃən/
a type of radiation(= energy from heat or light that you cannot see) in the form of electromagnetic waves(= waves in which both magnetic and electric fields may change at the same time), including X-rays, radio waves, visible light, and gamma rays: 电磁辐射
emit electromagnetic radiationMobile devices such as phones can emit powerful electromagnetic radiation.手机等移动设备会发出强大的电磁辐射。
We are facing a significant increase in electromagnetic radiation from power lines.
Related words
electromagnetic
radiation
The effect of the electromagnetic radiation emitted by computers is something that is being investigated by scientists.
The X-ray machine produces electromagnetic radiation.
Microwaves are a form of electromagnetic radiation with a wavelength between infra-red radiation and radio waves.
SMART Vocabulary: related words and phrases

Physics: radiation & radioactivity
alpha particle
background radiation
decay
gamma radiation
gamma ray
half-life
luminosity
non-ionizing
non-irradiated
nonradioactive
post-irradiation
radioisotope
sievert
spectrometer
spectrometric
spectrometry
UPF
UVA
UVB
weak force
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