电磁污染已成为首屈一指的物理污染。
Electromagnetic wave pollution has become the chief physical pollution.
电磁污染已成为当代首屈一指的物理污染。
Electromagnetic pollution has become the chief physical pollution.
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.
物理稀释作用对水相中污染物浓度降低的贡献相对较小；
The contribution of physical dilution to the water quality recoverability is relatively small;
物理稀释作用对水相中污染物浓度降低的贡献相对较小；
The contribution of physical dilution to the water quality recoverability is relatively small;
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