double auction system

例句：

1. 1. The company uses a double auction system to sell its products.
   该公司使用一种双重拍卖系统来销售其产品。
2. 2. The double auction system is designed to ensure fairness and transparency in the auction process.
   双重拍卖系统旨在确保拍卖过程的公平性和透明度。
3. 3. The double auction system has been widely adopted by various industries due to its efficiency and effectiveness.
   由于其效率和有效性，双重拍卖系统已被各行业广泛采用。