shell flange of cover end

例句：

1. 1.The engineer used a special tool to remove the shell flange.
   工程师使用一种特殊的工具来去除壳体法兰。
2. 2. The construction crew had to disassemble the shell flange before they could install the new parts.
   施工队伍在安装新部件之前必须拆卸壳体法兰。
3. 3. The shell flange was designed to provide a secure connection between two pieces of machinery.
   壳体法兰被设计用来在两台机械之间提供一种安全的连接。