seal by double knife-edges double knife-edge seal

[seal by double knife-edges double knife-edge seal]
[seal by double knife-edges double knife-edge seal]

中文释义

双刀口密封

单词分析

单词结构:

seal by double knife-edges double knife-edge seal

字母数:49

记忆提示

🎯 重点记忆:

  • 单词拼写:seal by double knife-edges double knife-edge seal
  • 核心含义:双刀口密封