Oreon.<美俚>(奉行白人社会准则的)“白心”黑人n.奥利奥奶油夹心巧克力饼干（商标名）oren.矿石；矿ore source bed矿源层ore extraction矿石开采Ore Resotlrces矿物资源ore microscope矿相显微镜orebody strike矿体倾向ore prediction找矿预测ore-lead age矿铅年龄orebody stoping矿体回采ore gondola car运矿专用敞车ore removal way出矿方式