dynamo door latch pin

例句：

1. 1.The electric door lock was easy to install and operate.
   这个电动门锁安装和操作都很容易。
2. 2. The security system included a dynamo door latch pin for added security.
   这个安全系统包括一个电动门锁销，以增加安全性。
3. 3. The dynamo door latch pin was designed to fit seamlessly into the existing hardware.
   这个电动门锁销被设计成可以无缝地融入现有的硬件中。