与普通光污染一样，海上光污染也属于物理性污染。
The light pollution at sea belonged to the physical pollution, so does the common light pollution.
漂浮和悬浮在水中的树木、杂草、塑料废弃物、生活垃圾、泥沙等属物理性污染物。
Trees, grasses, plastic offal, consumption residues and silt floating and suspending in water belong to physical pollutants.
另处，物理性污染没有后效作用，即噪声不会残存在环境中，噪声停止，污染立即消失。
Noise is transient; once the pollution stops, the environment is free of it.
前言：图书馆内污染物按性质分为化学性污染物、物理性污染物、生物性污染物和放射性污染物。
In library, the contaminations can be divided into four parts: i. e. chemical contamination, physical contamination, biological contamination and radioactive contamination.
前言：图书馆内污染物按性质分为化学性污染物、物理性污染物、生物性污染物和放射性污染物。
In library, the contaminations can be divided into four parts: i. e. chemical contamination, physical contamination, biological contamination and radioactive contamination.
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