论文部分内容阅读
河北省大曹庄农场,于一九七八年从美国引进“伐利”2071型中心支轴式喷灌机七台,八月安装完毕后,运转正常,十月至十一月份对灌机的部分水力性能进行了测试,测试场选在农场试验站小麦地,地平无障碍物。测试内容有(1)径向雨量分布及均匀度。(2)径向组合平均喷灌强度和雨滴直径。灌机的径向雨量分布及均匀度测试方法是沿灌机的任一径向布置一至二排雨量筒,
Large Caozhuang Farm in Hebei Province introduced “2071” type center-pivot irrigation machine “Qiluoli” from the United States in 1978. After installation in August, it was in normal operation. From October to November, Part of the hydraulic performance of the machine was tested, the test field was selected at the farm test station wheat field, the ground without obstacles. Test content (1) radial rainfall distribution and uniformity. (2) Radial combination of average irrigation intensity and raindrop diameter. The radial rainfall distribution and uniformity of the irrigation machine testing method is to arrange one or two rows of rain gauges along any radial of the irrigation machine,