超音波法液位元元元元元元测定  ultra-sonic method of liquid meaduremert

磁盘数据存储管理  disk data storage management

磁盘单元  disc unit; magnetic disk unit

磁盘数据安全保护  hard disk data protection

磁盘数据备份  data replication

磁盘数据库  database in disk; disk database

大型磁盘数据集  the large dataset

合式数据磁盘  data cartridge

键至磁盘数据输入系统  key to disk data input system

软磁盘数据输入系统  floppy data entry system

软式磁盘磁盘  compact floppy disk; CFD

微软磁盘磁盘驱动器  microfloppy-diskette drive

匣式磁盘单元  cartridge disc unit

ATM规约数据单元  ATM Protocol Data Unit

CPS数据单元  AAL2-CPS

MAC业务数据单元  MAC Service Data Unit MSDU

n-数元数元组  n-bit byte

OAM协议数据单元  OAMPDU

标准测试数据单元  benchmark data unit