闸刀

zhádāo

闸刀 — zhádāo

1. Unattested or rare term; literally “sluice/gate knife.” Possibly refers to a blade or cutting tool associated with sluices, gates, or a knife-shaped valve part. Use with caution — not widely recorded in major dictionaries.

   他拉下闸刀切断了电源。 tā lāxià zhádāo qiēduàn le diànyuán — He pulled down the knife switch and cut the power.