在硬化斗渠中仅查出1只感染性钉螺。
农村灌溉工程主要是指乡村一级管辖的斗渠以下田间工程。
The countryside irrigation engineering mainly refers to the village level jurisdiction below the lateral canal the field project.
农村灌溉工程主要是指乡村一级管辖的斗渠以下田间工程。
The countryside irrigation engineering mainly refers to the village level jurisdiction below the lateral canal the field project.
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