extremely low frequency

ریشه

From the English words 'extremely', 'low', and 'frequency'. First used in the context of electromagnetic spectrum.

مثال

• The submarine communicated using extremely low frequency signals.
• Extremely low frequency waves are difficult to detect.
• The research focused on the impact of extremely low frequency radiation.

ترکیب‌های رایج

Extremely low frequency signals Extremely low frequency radiation Extremely low frequency waves