我国的排灌机械是农业机械化重要组成部分,是实现农田水利化不可缺少的一种提水机械。30多年排灌机械发展很快,而且在农业机械化中占有相当大的比例,从1973年到1982年十年间,排灌机械动力保有量占农机总动力保有量的53.2～34％,详见表一。 China’s irrigation and drainage machinery is an important part of agricultural mechanization, is an indispensable water conservancy irrigation equipment. Over the past 30 years, irrigation and drainage machinery developed rapidly and accounted for a considerable proportion of agricultural mechanization. From 1973 to 1982, the power holding of irrigation and drainage machinery accounted for 53.2-34% of the total power of agricultural machinery. See Table 1 for details.