单词	steam packet boat
释义	steam packet boat 蒸汽机班船
随便看	optical receiving set optical receiving surface optical reception optical reciprocity optical recognition optical recognition device optical recombination coefficient optical-recombination coefficient optical recombiner optical reconnaissance optical reconstructio optical reconstruction optical record optical record and storage optical, record carrier optical recorder optical recording optical recording density optical recording device optical recording disk optical recording head optical recording material optical recording media optical recording medium optical, recording of measured values