three-column core

例句：

1. 1.The design of this product has a three-column core structure.
   该产品的设计具有三列柱结构。
2. 2. The three-column core technology is widely used in the field of data center cooling.
   三列柱技术在数据中心冷却领域得到了广泛应用。
3. 3. The three-column core structure helps to reduce the weight and increase the strength of the material.
   三列柱结构有助于减轻材料重量并提高其强度。