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direct ray
A ray of electromagnetic radiation that follows the path of least possible propagation time between transmitting and receiving antennas. Note: The path of least propagation time is not always the shortest distance path.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Telecommunications
- Category: General telecom
- Company: ATIS
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