Ammonia is the feed stock to make nitrogen-based fertilizers.
氨是氮基，化肥的原料。
Lack of chicken feed means that chicken farms are having to slaughter their stock.
饲料不足意味着养鸡场将不得不宰杀鸡。
They can be used as stock feed.
它们可以用作牲口饲料。
They can be used as a stock feed.
它们可以作为牲口饲料。
They can be used as a stock feed.
它们可以作为牲口饲料。
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