HDabbr.硬盘(=hard disk)abbr.高清晰度(=high definition)hdieobacter pylori螺杆菌,幽门HD CCD image sensor高清CCD图像传感器hd and pd catheters透析留置管HD broadcast system硬盘播出系统HDPE Pipe Insertion穿插HDPE管HDPE/LDPE blends高密度聚乙烯／低密度聚乙烯共混体系hdraulic tansmission液压传动HDC continuous casting水平连续铸造HDF of lubricating oil润滑油加氢工艺HDI trimer modification改性HDI三聚体