four-way tube box

例句：

1. 1.The four-way tube box is a crucial component in the construction of our new office building.
   四通管盒是我们新办公楼建设中至关重要的一个部件。
2. 2. The engineer used the four-way tube box to connect all the electrical outlets in the room.
   工程师使用四通管盒将所有房间的插座连接起来。
3. 3. The four-way tube box was designed to improve the efficiency of the heating system.
   四通管盒的设计目的是为了提高供暖系统的工作效率。