%0 Journal Article %T ²Ë»¨±éµØÏã %J ÆøÏó %D 1977 %R 10.7519/j.issn.1000-0526.1977.02.029 %U http://qxqk.cma.gov.cn/ch/reader/view_abstract.aspx?file_no=19770229&flag=1