%0 Journal Article %T Ãû´Ê½âÊÍ %J ÆøÏó %D 1975 %R 10.7519/j.issn.1000-0526.1975.01.025 %U http://qxqk.cma.gov.cn/ch/reader/view_abstract.aspx?file_no=19750125&flag=1