1. | 数字对象识别码（用以识别在互联网上发表的电子文本或文档的数字和字母序列）digital object identifier (a series of numbers and letters that identifies a particular text or document published in electronic form on the Internet) |
2. | （美国）内务部（负责国内环保事务）Department of the Interior (the US government department responsible for protecting the country's environment) |
