center pivot irrigation system

59畜牧学_馆档网 ... "中心线"," center line" "中枢灌溉系统"," center pivot irrigation system" "百分度;摄氏"," centigrade" ...

...喷灌机运行管理 第一章 中心支轴式喷灌机应用概述 中心支轴式喷灌机（Center pivot irrigation system），也称时针式喷灌机…