dead-end polymerization

例句：

1. 1.The dead-end polymerization of the project has been a major obstacle for us.
   项目的死胡同聚合已成为我们的主要障碍。
2. 2.The research on dead-end polymerization is still in its infancy.
   关于死胡同聚合的研究仍处于起步阶段。
3. 3. The company's strategy to dead-end polymerization has failed to generate significant profits.
   公司的死胡同聚合策略未能产生显著利润。