双机座轧机 two-stand mill ; double stand rolling mill

双机座型发电机 double-framed generator

双座飞机 two seater airplane ; two-seater plane

双座机 double seater

双座教练机 two-seat trainer ; two-place trainer

双辊式轧机机座 two-high rolling mill stand

双座滑翔机 two-seat glider

双座歼击机 two seat fighter

串列双座截击机 tandem-seat interceptor