词汇	不透射线的介质
释义	不透射线的介质医radiopaque medium
随便看	Learning of the uprising,he returned to Italy Learning of the uprising, he returned to Italy learning of things learning of various schools learning of vocal music learning of vocals learning of whole people Learning operator learning opinion learning opportunity learning or acquisition Learning Orgaaization learning organization Learning-organization learning organizational theory learning organizations learning-organization school learning organization theory learning-orientated society learning orientation learning-oriented Learning Oriented Assessment Project learning-oriented campus learning-oriented city Learning-oriented city