涵洞和水闸的合称culvert and sluice

• 阻水的路基、涵闸

  road foundations, culverts, and sluices that impede water

• 梁卫国一行前往黑砂河口涵闸应急除险工程实地察看。

  Liang Weiguo's party visited the site of the emergency culvert and sluice barrier removal project at the mouth of the Heisha river for an investigation.