Douglas functional

例句：

1. 1. The newdesign incorporates Douglas functional elements to enhance user experience.
   新设计融入了道格拉斯功能性元素，以提升用户体验。
2. 2.The Douglas functional system is designed to improve the efficiency of the manufacturing process.
   道格拉斯功能性系统旨在提高制造过程的效率。
3. 3.The Douglas functional device has been proven to be effective in reducing noise pollution in urban areas.
   道格拉斯功能性装置已被证明在减少城市噪音污染方面是有效的。