中间反应 meaning in English

intermediate reaction

B _ 2o _ 3 melted in 450 , then mg melted in 650 , the three phase reaction was taken place from 730 , zro _ 2 reacted with mg at first , then was the redox reaction of b _ 2o _ 3 and mg , finally was the synthetic reaction of b and zr
差热分析表明:该反应过程经由多个中间反应直至最后完成, b _ 2o _ 3在450熔化, mg在650熔化,三相反应的发生始于730 。首先发生的反应是zro2和mg的还原反应,其次是b _ 2o _ 3和mg的还原反应,最后是zr和b反应合成zrb2 。