Queensland tests acoustic alarms to ward off whales from shark nets
发生了什么
Authorities hope that changing the frequency of acoustic alarms will be more effective at scaring off migratory mammals.
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为什么在扩散
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- ABC News (Australia) 最先出现ABC News (Australia)
- Hacker News 出现讨论Hacker News
来源
新闻报道
- High-frequency 'pingers' trial to keep whales out of shark netsABC News (Australia)