jgg     2010 30 (Supp.2):  22-26    ISSN: 0412-1961  CN: 21-1139/TG DIFFERENTIAL CHARACTERISTICS OF PARALLEL OBSERVATION DATA RECORDED BY PENDULUMTYPE TILTMETER AT LINFEN SEISMOSTATION Gao Zhenqiang 1,2) ;Li Yan 1,2) ;Feng Jianqin 1,2) ;Zhang Yanghui 1,2) ;Jin Hongliang 1,2) ; and Li Jun 1,2) 1)Linfen Central Seismological Station of Earthquake Administration of Shanxi Province, Linfen 0410002)National Continental Rift Valley Dynamics Observatory of Taiyuan, Taiyuan 030025 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null