闸

• 拼音: zhá
• 汉字拆解: 闸 = 门 (gate) + 甲 (armor/shell) — a controlled gate

含义

Sluice gate; floodgate; brake. A device for controlling water flow or stopping motion.

Used for water control structures (水闸, sluice), electrical switches (电闸, circuit breaker), and brakes (刹车闸). Common in infrastructure and engineering contexts. Metaphorically: 开闸泄洪 (open floodgates).

例句

1. 水库管理员按时打开闸门，调节下游的水量。
2. 暴风雨来临前，所有的防洪闸都已检查完毕并关闭。
3. 自行车的闸失灵了，骑行时必须特别小心。

用法指南

语境: engineering, infrastructure, vehicles

语气: technical

正确说法

• 工程师下令开闸放水，缓解上游水库的压力。(The engineer ordered the sluice gate opened to release water and relieve pressure on the upstream reservoir.)
• 暴雨导致电闸跳闸，整栋楼陷入黑暗。(The heavy rain caused the circuit breaker to trip, plunging the entire building into darkness.)

错误说法

• 闸一下 as a verb for braking — use 刹车 or 刹一下 for the action of braking

起源与历史

Radical 门 (gate) + 甲 (armor/shell) — a gate that can be closed

文化背景

世代: All ages

社会背景: Universal