jgg     2007 27 (增刊):  130-132    ISSN: 0412-1961  CN: 21-1139/TG DESIGN OF A HIGH PRECISION TILTOMETER Yang Jian;Hu Guoqing ;and Wu Yanxia Institute of Seismology, CEA, Wuhan 430071 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null