闸刀 (zhá dāo) — knife switch (electrical)
Definition
A knife switch, an old-style electrical on/off switch with a hinged metal blade. Now rare, mostly seen in industrial or vintage contexts.
noun
knife switch (electrical)
Measure word · 把
Examples
- 闸刀。Diàn gōng zhèng zài ān zhuāng zhá dāo.The electrician is installing a knife switch.
- 闸刀。Lǎo shì de zhá dāo kāi guān xiàn zài hěn shǎo yòng le.Old-style knife switches are rarely used now.
- 闸刀。Shǐ yòng zhá dāo shí bì xū zhù yì ān quán.When using a knife switch, you must be careful about safety.
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