不过布袋莲也能吸收污水中的化学废料，对环境保护有相当大贡献，是大自然重要的环保尖兵！

Not only the heavy metals, Water Hyacinth can also remove toxins, such as cyanide, a process which is environmentally beneficial in areas that have endured gold mining operations.

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邮袋：用来运送邮件的大帆布袋。

A bag or sack used to carry mail or diplomatic dispatches.

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捕集的烟气通过管道进入地面站的大单元脉冲布袋除尘器得以净化。

The collected gas has been drawn through the main pipe into the pulsed cleaning baghouse with big units in the dedusting station and been cleaned.

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