高本底辐射地区
high background area
high background radiation area
本底辐射
Background radiation
natural background radiation
background
radiation background
辐射本底调查
radiation background survey
辐射本底灰度
irradiation background grey scale
天然本底辐射
natural backgroundradiation
natural background radiation
GJT-高辐射陶瓷涂料
GJT-high radiation ceramic coating
部分辐射高温计
partial radiation pyrometer
费里总辐射高温计
Fery total radiation pyrometer
费瑞总辐射高温计
Fery total radiation pyrometer