[2003-3] ̱ ִ øƮ "California" Ȳ
* California - ̱ ū øƮ Ӱ ÿ ְ ұԸ ɰϴ Ը *ĶϾ øƮ - Ȳ ǼȰ ȰϿ - California ü ɷ ó ִ ַ øƮ ν øƮ е ڷó : International Cement Review 2002 12