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roentgen-hour-meter
geophys. 每小时每米伦琴; 拉姆距离辐射源1米处每小时伦琴数
 English thesaurus
Roentgen Hour Meter
univer., abbr. RHM
roentgen-hour-meter: 6 phrases in 3 subjects
Earth sciences1
Geophysics3
Technology2