High Dynamic Range高级动态范围 High Data Rate高数据速率 Humanitarian Daily Ration人道主义每日定量 High Definition Radio高清广播 Health Data Repository健康数据仓库 Help Desk Request服务台的要求 Henningson Durham and Richardson (Architecture and Engineering Firm)Henningson达拉谟、理查德森(建筑和工程公司) High Dose Rate高剂量率 Hot Dry Rock干热岩体 Hardware Design Review硬件的设计评论 Headern.[计]页眉 Hardware Development Requirements硬件的发展要求 Heissdampfreaktor (German: Hot Steam Reactor)德语:Heissdampfreaktor热气反应器 Half-sized Diazo Reproducible drawingHalf-sized氮可再生画画 Human Development Resources人类发展的资源