head gate

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. regulator consisting of a valve or gate that controls the rate of water flow through a sluice
• Syn:
sluicegate, sluice valve, floodgate, penstock, water gate
• Hypernyms:
regulator
• Part Holonyms:
sluice, sluiceway, penstock
2. a gate upstream from a lock or canal that is used to control the flow of water at the upper end
• Hypernyms:
gate