概念信息
此概念无该语言术语。
优选术语
定义
- Pingers are a type of acoustic alarm. They tend to be relatively small, cylindrical units roughly the size of a soda can. They produce sound at different frequencies, although generally in the 3–70 kHz range, and lower than 180 dB (re 1 pPa @ 1 m). (en)
- Ses yayan aygıt. Ağlara bağlanarak yunus balığı vb'ni ürküterek ağdan uzaklaştırmada kullanılan ses yayıcı cihaz. (tr)
上位概念
- sound generators (en)
其他语言
URI
http://aims.fao.org/aos/agrovoc/c_549151a5
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