According to different flow patterns , a new transferring rule for oil - water two phases system flowing model in pipes is built in including the stability rule for stratified flow patterns and transferring border and anti - phase border for deconcentrating patterns and mixture patterns 根据管内油、水两相流流型特征，建立了新的油、水两相管流流型的转换准则。它包括：分层流型的稳定性准则、分散流型和混合流型的转换边界及反相界线。
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280ka aluminum smelting system is a large sized prebaking electrolytic tank developed and researched by our country . the whole system makes the control by means of centralized management and deconcentrated control . lt has the features of hight production and effciency , and , low investment , energy consumption and pollution , which are listed as hi - techindustrialization demonstrative project by the country 280ka槽铝电解系列是我国自行开发研制的大型预焙电解槽，全系统采用计算机集中管理分散控制的方式进行控制，具有高产、高效、低投资、低能耗、低污染等特点，被国家列为高技术产业化示范工程。
