一、使用气镇泵的意义 目前真空技术被广泛地应用到国民经济的各个部门。其中要求从真空系统或真空容器中排除可凝性蒸汽或非凝性气体和可凝性蒸汽混合物的场合日益增多,像化学工业方面的蒸馏、干燥,食品工业方面的冷冻干燥,冶金工业方面的真空冶炼及实验仪器的清洗等。可是怎 First, the significance of the use of gas pump At present, vacuum technology is widely used in various sectors of the national economy. There is a growing demand for the removal of condensable vapors or non-condensable gases and condensable vapors from vacuum systems or vacuum vessels such as chemical industry, distillation, drying, freeze-drying in the food industry, metallurgical industry Vacuum smelting and cleaning of laboratory equipment. But how