水模拟试验台
the water imitation experiment set
水力机械高精度通用试验台
high accurancy universal testing stand for hydraulic machinery
水力机械高精度模型通用试验台
high accurancy universal testing stand for hydraulic machinery modelling
水泵多台并联
multi-parallel connec tion pumps
双转台五轴机床
two turntable 5-axis machine tool
双柱开式固定台压力机
double column open-back press with fixed bed
双针高缝台缝纫机
two-needle post bed sewing machine
双向振动台试验
two-direction shaking table test