beach detector

例句：

1. 1. The beach detector was used to detect the presence of oil spills on the sand.
   海滩探测器被用来检测沙滩上石油泄漏的存在。
2. 2. The beach detector was used to detect the presence of illegal fishing activities in the area.
   海滩探测器被用来检测该地区非法捕鱼活动的存在。
3. 3. The beach detector detected a strong current that could have caused the boat to capsize.
   海滩探测器检测到一股强劲的水流，这可能导致船只翻覆。