tun·er /ˈtunɚ/
  調音師,調音的人,調整器
  Tun·er n. One who tunes; especially, one whose occupation is to tune musical instruments.
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  tuner
       n 1: someone who tunes pianos [syn: piano tuner]
       2: an electronic receiver that detects and demodulates and
          amplifies transmitted signals [syn: radio receiver, receiving
          set, radio set, radio, wireless]