ABCD optical system with internal hard-edge aperture
Adaptive Optical System
apodized optical system
Direct optical rotation of sugarcane juice
direct optical viewfinder
eyepiece optical system
infinity optical system
model establishment of optical system
projection optical system
reflective optical system
refractive and reflective optical system
refractive optical system
Automatic meter reading system
自动抄表系统
自动抄表
抄表系统
电能表数据采集系统
遥测抄表系统
田间水分利用效率(WUEET)
自动读表系统
集抄系统
concentration direct reading method
digital wheel code direct reading