expansion refrigeration

例句：

1. 1. The company's expansion refrigeration system has significantly improved the efficiency of its production lines.
   该公司的扩张制冷系统显著提高了生产线的效率。
2. 2.The new refrigeration technology is designed to expand refrigeration capacity and reduce energy consumption.
   这项新的制冷技术旨在扩大制冷容量并减少能源消耗。
3. 3. In the cold storage area, we use a combination of expansion refrigeration and natural ventilation to maintain optimal temperature conditions for the products.
   在冷库区域，我们采用膨胀制冷和自然通风的组合来为产品保持最佳的温度条件。