磁层-电离层系统(MI系统)
Magmetosphere-Ionosphere(MI) system
渐新统—中新统
Oligocene—Miocene boundary
第四系下限
lower limit of the Quaternary
5万水系沉积物测量
50000 Stream Sediment Survey
5 ten thousand hydrographical sedimentary deposits
HW-MWECR沉积系统
HW-MWECR deposition system
八进制程序更新系统
octal program updating system
OR circuit
opus
侧向沉积系统
lateral deposition system
程序馆更新系统
program library update system
Plus