近几年来,我场已引进73台大型喷灌机械,其中:时针式行走塔架喷灌机62台(以下简称圆形喷灌机)。经过五年多的运转表明:它是大型机械化农场旱田灌溉行之有效的设备。在进行《百万亩旱涝保收田》规划设计工作中,我们把喷灌机的工作直径(D=800米)与排水、田块、林带、道路、电讯等统筹布置,尽量避免喷灌圈的重叠。但是,在有些小区,避免不了重叠时,则把重叠 L 重 In recent years, our factory has introduced 73 large-scale irrigation machinery, of which 62 are hour-type walking tower sprinklers (hereinafter referred to as circular irrigation machines). After more than five years of operation, it shows that it is an effective device for dryland irrigation in large mechanized farms. In carrying out the planning and design work of “one million mu of dry, wet land and paddy field”, we arranged the working diameter (D = 800m) of sprinkler and drainage, plots, shelterbelts, roads, telecommunications and other co-ordination arrangements to avoid overlap of sprinkler sprinklers. However, in some areas, can not avoid the overlap, then the overlap L weight