消聲器 [－声－]

Jyutping siu1 sing1 hei3
Pinyin xiāo shēng qì

Definitions (CC-CEDICT)
  1. noise reduction equipment
Definitions (Wiktionary)
  1. noun
    silencer, noise reduction equipment
Definitions (兩岸三地生活差異詞語彙編—Two Shores Three Places)
  1. 車輛：臺
    消音器
  2. 車輛：陸
    消聲器