单词：trickle irrigation
trickle irrigation的用法和样例：
例句
- Installing drip irrigation is relatively simple.安装滴灌比较简单。
- The report urges countries to repair and modernise irrigation systems and use better drip-fed farming.报告敦促各国修葺和现代化灌溉系统，使用更好的滴灌农业。
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