板式多效蒸馏水机
plate type multi-effect water distiller
半直接蒸馏流程
semi-direct distillation process
苯抽提蒸馏技术
benzene extractive distillation technology
苯蒸馏器
benzene distilling apparatus
薄膜蒸馏装置
film distillation apparatus
不同蒸馏时段
Different period in distillation process