检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
出 处:《China Standardization》2009年第6期53-53,共1页中国标准化(英文版)
摘 要:Recently, Sun Xiaokang, the vice administrator of SAC introduced the related situation of standardization during the program of "China Economic Network". He said: "The standard system in China has four levels of standards: national, industry, local and enterprise standards. According to the nature of the standards, in China they are classified into compulsory and voluntary standards. By June 30, 2009,
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:52.14.17.231