@article{yjycl2108474137988956161,
  title = {西门子1500PLC控制系统工作原理及常见故障},
  author = {李智仁},
  journal = {冶金与材料},
  year = {2021},
  number = {4},
  pages = {188--189},
  issn = {2096-4854},
  url = {https://yjycl.hljsm.org.cn/articles/2108474137988956161},
}