The entire system consists of a compact, lightweight pulse control panel and carbon fiber drop-in pans. The only external equipment required is a compressed air source.

整套系统包含一个紧凑、轻便的脉冲控制面板和碳纤维岩屑盘，唯一所需的外部设备是一个压缩空气源。

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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