超精密精馏
super precise distillation
大型精密仪器
large precision instrument
large instrument
the large precision instrument
large precise instrument
Large-scale instruments
large-scale precision instruments
large-scale precision instrument and equipment
大型精密仪器设备
large precise instrument
The large-scale precision instrument equipment
large-scale precision instruments and equipment
非精密仪降跑道
non-precision-instrument runway
高度精密水平测量
leveling of high precision
光电精密仪器
Optoelectronic precision instrument
贵重精密仪器设备
valuable precision instrument and equipment