short pitch roller chain

例句：

1. 1. The engineer designed a short pitch roller chain to improve the efficiency of the machine.
   工程师设计了一个短节距滚子链来提高机器的效率。
2. 2.The new design of the short pitch roller chain has greatly reduced the weight and improved the durability.
   新型的短节距滚子链的设计大大减轻了重量并提高了耐用性。
3. 3. The manufacturer claims that their short pitch roller chain is more durable than traditional chains.
   制造商声称他们的短节距滚子链比传统链条更耐用。