名词
中文翻译：专用目的浮标
同义词：
['特定用途浮标，专用浮标例句：1. The special purpose buoy was used to monitor the water quality in the river.（这个专用目的浮标被用来监测河流的水质量。）']
例句：
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1. The special purpose buoy was used to monitor the water quality in the river.
这个专用目的浮标被用来监测河流的水质量。
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2. The special purpose buoy was designed to help fishermen find their way back to the shore.
这个专用目的浮标被设计来帮助渔民找到他们返回岸边的路。
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3.The special purpose buoy was used to prevent ships from getting into trouble in the fog.
这个专用目的浮标被用来防止船只在雾中陷入困境。