double-column disconnector双柱式隔离开关
double rectification column[化工] 双级精馏塔
double absorption column双吸收塔
double line column双横队
Double e column magazine双排弹匣
double-column process双塔流程
Double-column structure本机采用双立柱结构
double-column machine双柱式机床
double-column chromatography双柱色谱