喷灌技术要素 irrigation sprinkler: 喷灌机sprinkler irrigation: 喷灌; 人工降雨equipment of sprinkler irrigation: 喷灌设施low level sprinkler irrigation: 地面小孔细流喷灌sprinkler irrigation method: 喷灌法下载手机词典可随时随地查词查翻译