poly-tetrafluoroethylene bearing

例句：

1. 1. The new drug is designed to be used as a polytetrafluoroethylene bearing for the treatment of chronic pain.
   这种新药被设计为用于治疗慢性疼痛的聚四氟乙烯承载体。
2. 2. The engineer used a polytetrafluoroethylene bearing to transfer the heavy load from oneside of the machine to the other.
   工程师使用聚四氟乙烯承载体将机器一侧的重负载转移到另一侧。
3. 3.The polytetrafluoroethylene bearing was carefully installed to ensure smooth operation of the machine.
   聚四氟乙烯承载体被仔细安装，以确保机器的平稳运行。