jgg     2010 30 (Supp.2):  36-39    ISSN: 0412-1961  CN: 21-1139/TG SELF-TEST ACCURACY OF 4-COMPONENT BOREHOLE STRAIN OBSERVATION Tang Lei;Qiu Zehua; and Song Mo Institute of Crustal Dynamics，CEA，Beijing 100085 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null