jgg     2010 30 (Supp.2):  6-9    ISSN: 0412-1961  CN: 21-1139/TG EFFECT OF EARTH FLATTENING ON PRECISE CALCULATION OF TIDAL GENERATION FORCE Hao Hongtao 1,2,3) ;Li Hui 1,2) ;Liu Ziwei 1,2) ; and Wei Jin 1,2) 1)Institute of Seismology, CEA,Wuhan 4300712)Crustal Movement Laboratory, Wuhan 4300713)Graduate School of Chinese Academy of Science, Beijing 100049 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null