reproduction ring

例句：

1. 1. The researchers found that the replication ring of the virus was responsible for its ability to spread rapidly.
   研究人员发现，病毒的复制环是其迅速传播能力的原因。
2. 2. The scientists designed a new device that could replicate rings around the DNA molecules.
   科学家们设计了一种新型设备，可以围绕DNA分子复制环形。
3. 3. The company's new product is a replication ring that can be used to protect against viruses and bacteria.
   该公司的新产品是一种复制环，可以用来保护免受病毒和细菌的侵害。