名词
中文翻译：点源
同义词：
['point source', 'point of origin例句：1. The point source of the pollution is in the industrial area.（污染的源头在工业区。）']
例句：
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1. The point source of the pollution is in the industrial area.
污染的源头在工业区。
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2. The point source of the pollution is in the industrial area.
污染的源头在工业区。
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3. The point source of the pollution is in the industrial area.
污染的源头在工业区。