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Jyutping zyun3 cuk1 biu1
Pinyin zhuǎn sù biǎo

Definitions (Wiktionary)
  1. noun
    tachometer

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Jyutping zyun3 cuk1 biu1
Pinyin zhuàn sù biǎo

Definitions (CC-CEDICT)
  1. tachometer
  2. RPM gauge