HDabbr.硬盘(=hard disk)abbr.高清晰度(=high definition)HD Speed Burst Rate Test突发传输速率测试HDD Low Level Format Tool硬盘低格工具HDPE-wood composite pipe木塑复合管材HDEO Heavy Duty ENGINE oil重型发动机润滑油hdroxyapatite eye pedestal羟基磷灰石义眼座HDC High Speed Data Channel数据高速通道HD/SD multiformat signal高清／标清多格式信号HDPE external protection tube高密度聚乙烯外护管HDDT High Density Digital Tape高密度数字磁带HDTR High Density Tape Recorder高密度磁带记录器高分辨率可见光相机