The pollution source of amorphous dust resulted from open-air coal stocking yard is specialized with large area, which is difficult to control.

本文通过采用在储煤场周围设置防风抑尘墙，降低储煤场内风速，从而实现有效控制储煤场无组织扬尘污染。

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Oilfield enterprises are one of main source of environment pollution. How to control pollution from oilfield enterprises is fatal to the environment protection.

我国油田企业是环境污染的重要来源之一，如何控制油田企业对环境造成的污染是进行环境保护非常关键的一部分。

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But should he proceed with regulations to control pollution from existing coal-fired power plants, the single largest source of carbon pollution, those regulations probably will contribute to shuttering facilities already struggling to compete with cheap natural gas.

NPR: PROMISES, PROMISES: Climate Change