双炉膛 meaning in English

double-furnace
twin furnace
twin-furnace

This paper ameliorated the old thermogravimetry , redesigned the structure of analytical balance , improved data acquisition and digital signal process system . moreover , we replaced the double - hearths structure with one - hearth double - crucibles structure
本文对原有的加压热重分析仪加以改进，改双炉膛结构为单炉膛双吊篮结构；改进了分析天平的结构；改造了原有的数据采集与信号处理系统。