principal ideal ring

例句：

1. 1.The principal ideal ring of the society is to promote innovation and creativity.
   该社会的主要理想圈是促进创新和创造力。
2. 2.The core ideal ring of the company is to provide high-quality products and excellent customer service.
   公司的核心竞争力是提供高质量的产品和优秀的客户服务。
3. 3.The primary ideal ring of the project is to improve energy efficiency and reduce carbon emissions.
   该项目的主要理想圈是提高能源效率并减少碳排放。