RH factor
Longman Dictionary of Contemporary English 5++LDOCE 5++RH fac·tor /ˌɑːr ˈeɪtʃ ˌfæktə $ -tər/ noun [singular] HBHthe Rhesus factor 〔血液中的〕猕因子,Rh因子
RH fac·tor nounChineseSyllable
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