地面污染监测器
floor contamination monitor
表面污染测量
Measurement of surface contamination
表面污染测量仪
surface contamination meter
近地面污染监测
near ground air pollution
大气污染监测器
air contamination monitor
air activity monitor
air monitor
空气污染监测器
air contamination monitor
air monitor
食物污染监测器
food contamination monitor
手污染监测器
beta hand contamination monitor
alpha hand contamination monitor
衣服污染监测器
laundry contamination monitor
GaAs光电阴极表面污染
The surface contaminants of NEA GaAs photocathode
α表面污染
alpha surface contamination
表面污染层
Surface contaminated layer
表面污染计
surface contamination meter
表面污染控制
surface contamination control
表面污染控制水平
control level of surface contamination