| 单词 | wireless local loop (WLL) |
| 释义 | wireless local loop (WLL) W-1. Generally speaking, the higher the transmission window (i.e., the longer the wavelength and lower the frequency), the less the signal attenuation, but the more expensive the associated electronics. See also attenuation, FOTS, frequency, laser diode, LED, VCSEL, and wavelength. |
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