边沟是指设置在挖方路基路肩外侧及低填方路基地脚外侧的纵向人工沟渠，用以收集路面的地面水，排除路基拦截道路上方边坡的坡面水，迅速汇集并把它们引入顺畅的排水通道中，通过桥涵等将其泄放到道路的下方。
n. cuvette
misc. side ditch
边沟?。
同时，我们也通过双边、多边沟通与合作，共同确保中国机构和人员在海外的安全。
At the same time, we have increased bilateral and multilateral communication and cooperation to jointly guarantee the security of overseas Chinese people and institutions.
田边水沟和道路边沟的螺情很严重(阳性螺占有螺面积的62%)，是最危险的易感地带。
The ditches beside paddy fields and roads were the most dangerous susceptive zone because of serious Oncomelania, area of Positive Oncomclania is 62% of Oncomelania area.
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