粵典 (words.hk)香港詞反饋高音到人耳聽唔到嘅聲，即係#頻率 高於兩萬#赫 嘅聲波 (ultrasound)名詞用例照超聲波ziu3 ciu1 sing1 bo1take an ultrasound scan
粵典 (words.hk)香港詞反饋高音到人耳聽唔到嘅聲，即係#頻率 高於兩萬#赫 嘅聲波 (ultrasound)名詞用例照超聲波ziu3 ciu1 sing1 bo1take an ultrasound scan
維基詞典粵語詞反饋原書拼音: /t͡sʰiːu̯⁵⁵ sɪŋ⁵⁵ pɔː⁵⁵/ultrasound (sound with a frequency greater than the upper limit of human hearing)