PDF(769 KB)
Analysis on composition and principle of PA/AD board in Scorpion seismograph A unit.
Zhang Wei,Fan Jinri , Zhang Shuhua.
Equipment for Geophysical Prospecting ›› 2008, Vol. 18 ›› Issue (4) : 233-237.
PDF(769 KB)
PDF(769 KB)
Analysis on composition and principle of PA/AD board in Scorpion seismograph A unit.
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