Ammonia is a colorless gas with strong smell.

氨是无色并有强烈气味的气体。

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They can also reduce the strong smell of ammonia gas.

它们同样还可以减少氨气的刺激性气味。

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They can also reduce the strong smell of ammonia gas.

它们同样还可以减少氨气的刺激性气味。

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