distribution of n-alkanes

例句：

1. 1. The company's distribution strategy isto expand into new markets.
   该公司的分销战略是拓展到新的市场。
2. 2. The governmentdistributed food aid to the impoverished areas.
   政府向贫困地区分发了食物援助。
3. 3. The scientists are trying to understand thedistribution of carbon dioxide in the atmosphere.
   科学家们正试图了解大气中二氧化碳的分布情况。