interrogate
发表于 2025-3-23 10:53:08
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淡紫色花
发表于 2025-3-23 17:31:30
Gerd Roseeceiver located from 65 to 130 km distant from the transmitter. The ground wave and the skywave arrived at the receiver with a relative phase difference. When the frequency of the transmitter and the receiver were simultaneously and rapidly changed by a small amount, the investigators obtained maxim
易于交谈
发表于 2025-3-23 20:51:28
Gerd Rose The authors describe the design and construction of major radio telescopes as those in Dwingeloo, Jodrell Bank, Parkes, Effelsberg and Green Bank since 1950 up to the present as well as millimeter wavelength telescopes as the 30m MRT of IRAM in Spain, the 50m LMT in Mexico and the ALMA submillimete
Between
发表于 2025-3-24 00:49:41
Gerd Rose The authors describe the design and construction of major radio telescopes as those in Dwingeloo, Jodrell Bank, Parkes, Effelsberg and Green Bank since 1950 up to the present as well as millimeter wavelength telescopes as the 30m MRT of IRAM in Spain, the 50m LMT in Mexico and the ALMA submillimete
lambaste
发表于 2025-3-24 02:32:05
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分发
发表于 2025-3-24 09:29:18
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Cpap155
发表于 2025-3-24 14:21:07
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六个才偏离
发表于 2025-3-24 17:18:07
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不透明
发表于 2025-3-24 19:39:53
Gerd Rosedio wave propagation without requiring recourse to advanced Understanding the propagation of radio waves in the vicinity of the earth’s surface can be quite complex, especially if detailed theoretical knowledge is required. The transmission path is complicated by atmospheric, tropospheric and ionosp
圆桶
发表于 2025-3-25 00:34:46
Gerd Rose is required. The transmission path is complicated by atmospheric, tropospheric and ionospheric - fects, and the earth’s surface itself, and other obstacles, can interact with the passage of radiation between a transmitter and receiver. Time of day and season of the year can also be important. A ful