informationlessadj.无信息的；不传送信息的informationn.信息；情报；资料；通知information share-and-exchange信息共享交换information policy and regulations信息政策法规information preservation technique信息贮藏技术Information warfare of air defense防空信息战informational instruction resource信息化教学资源information processing requirement信息处理要求information technology expenditure信息科技开支information security understanding信息安全认识information-matter element model信息-物元模型information structure metalanguage信息结构元语言