landing door safety switch

[landing door safety switch]
[landing door safety switch]

中文释义

[建] 层门安全开关

单词分析

单词结构:

landing door safety switch

字母数:26

记忆提示

🎯 重点记忆:

  • 单词拼写:landing door safety switch
  • 核心含义:[建] 层门安全开关