reduced tee pipe coupling

例句：

1. 1.The engineer used a reduced tee to connect the pipes.
   工程师使用一个减少的T形管来连接管道。
2. 2. The reduced tee fitting was designed to reduce noise in the system.
   减少的T形管接头被设计来减少系统中的噪音。
3. 3. The reduced tee fitting is an essential component of the piping system.
   减少的T形管接头是管道系统的一个必要组成部分。