When the natural fatty oils are in short supply, the paraffin oxidation products can be used to produce various washing commodities.

在天然油脂比较紧缺的情况下，石蜡氧化产品可用于生产各种洗涤用品。

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Oil and gas were precious commodities in short supply.

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But as Colin Powell pointed out during a brief tour of Africa earlier in the year, money loves security and stability, and, in much of the continent, those commodities remain in short supply.

BBC: US-Africa business summit opens

They're commodities that have been in short supply.

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