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1 前言农机化的发展程度，对农村经济的发展起着巨大的影响作用。近几年来，我们桂阳县在农机推广方面做了不少的工作，农田翻耕、排灌、脱粒、农用运输等方面，有了很大发展。至2000年底，全县农机总动力达29399台/208466千瓦，其中增幅较大的有小型动力脱粒机、排灌机具、微
1 Preface The development of agricultural mechanization has a huge impact on the development of rural economy. In recent years, we Guiyang County in the promotion of agricultural machinery has done a lot of work, farmland plowing, irrigation and drainage, threshing, agricultural transport, has made great progress. By the end of 2000, the county’s total agricultural machinery power reached 29399 units / 208,466 kilowatts, of which a larger increase in small power thresher, irrigation and drainage equipment, micro