一、前言 采用水环──大气喷射原理制造真空泵是一项新的技术,近几年来国内外正进行研究,并已开始用于生产。 广东省佛山水泵厂、一机部重型机械研究所和中山大学,遵照毛主席关于“奋战、备荒、为人民”和“自力更生,艰苦奋斗”的伟大教导,实行工厂、科研单位、学校三结合,在? I. INTRODUCTION Using water ring ─ ─ principle of atmospheric jet vacuum pump is a new technology, in recent years at home and abroad are being studied and has begun to be used for production. Guangdong Foshan Pump Factory, a machine Heavy Machinery Institute and Sun Yat-sen University, in accordance with Chairman Mao’s “great efforts to prepare for the shortage, for the people” and “self-reliance, hard work,” the great teaching, the implementation of factories, research institutes, in?