另一个单位是美元，如iso 4217所定义，该国际标准描述了由三个字母组成的货币代码(“USD”代表美元)。
The other unit is the US Dollar, as defined in ISO 4217, the international standard describing three-letter currency codes (" USD "for the US Dollar).
如果这本书需要能够被书商或是图书馆分类，它还需要一个独一无二的数字代码，例如ISBN(国际标准图书号)。
If you want the book to be categorized, either by a bookseller or a library, it has to be assigned a unique numerical code, like an ISBN, for International Standard book Number.
中国标准刊号由国际标准刊号和以中国国别代码为标识的国内统一刊号两部分组成。
China standard periodical number is consisted of international standard periodical number and civil periodical number marked with CN.
中国标准刊号由国际标准刊号和以中国国别代码为标识的国内统一刊号两部分组成。
China standard periodical number is consisted of international standard periodical number and civil periodical number marked with CN.
应用推荐