pín dài
意思解释:(Frequency band)声波、无线电波或光波的一系列连续频率范围之一。亦称“波段”
介于两个特定频率之间的所有频率的连续范围。1955年1月《无线电》第1期:“无线电传真电路,可直接传递文字、图案、报表等文件,它所占的频带较宽,约等于一个无线电话电路所占的频带。”…
Interpose the successive limits of all frequency between two specific frequency. In January 1955 radio the 1st period: Unplug Gan knocks at of stitch the sole to the upper to refined Bian punishs Shao benzene oh Yan mires frame ⑼ and float ⒈ ū vast natrium of envy of of of of holding the post of collect swings envy of of gorge Hui to throw Gan of show off Huan Xin to knock at natrium of envy of of bandit of black dark Bian to swing ! Thin
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