buffer stock

例句：

1. 1. The company maintains a buffer stock of emergency supplies in case of natural disasters.
   该公司在自然灾害发生时保持有紧急物资的缓冲库存。
2. 2.The manufacturer has built up a buffer stock of raw materials to ensure supply during peak demand periods.
   这家制造商已经建立了原材料的缓冲库存，以确保在需求高峰期能够供应。
3. 3.The financial institution has established a buffer stock of cash reserves to mitigate the impact of market volatility.
   这家金融机构已经建立了现金储备的缓冲库存，以减轻市场波动的影响。