并列双圆柱
two side-by-side circular cylinders
串列双圆柱
tandem two cylinders
two circular cylinders in tandem
二维串列双圆柱
2-D tandem twin cylinders
横向排列双圆柱
two side-by-side circular cylinders
双列圆柱滚子轴承
double row cylindrical roller bearing
double row cylindrical roller bearings
double row roller bearing
双列圆锥滚子轴承
automobile hub bearing
double row roller bearing
double row tapered roller bearing
双排式圆盘耙
double-action disc harrow
双圆盘Hardy空间
Hardy space in the bidisc
双圆盘电极
Dual disk-shaped electrode
Dual disk-shaped elec-trode
双圆盘摩擦压力机
double disc friction screw press
双圆盘上的Hardy空间
Hardy space on the bidisk
斜置排列双圆柱
two cylinders in staggered arrangement