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Time & Frequency Bulletin
1001-1811
1981 Issue 4
Time of Emission of Time Signals
..............page:1
3. shi jie shi he di ji zuo biao
..............page:21
bpm shi hao de jie shou he shi yong ( xu )
chen hong qing
..............page:13-15
TA (CS AO) - CLOCK
..............page:6
Frequency Departure
..............page:2
1980 nian di qiu zi zhuan su lv de ji jie xing bian hua
liu yu zheng ; zhang qing lian
..............page:16-17
zhong yao tong zhi
..............page:2