spiral quad

例句：

1. 1. The spiralquad is a complex network of pipes thatdistribute water throughout the building.
   螺旋四联体是一个复杂的管道网络，用于在整个建筑中分配水。
2. 2. The spiral quad wasdesigned to optimize the flow of airand improve the efficiency of the ventilation system.
   螺旋四联体被设计来优化空气流动和提高通风系统的效率。
3. 3. The spiral quad is often usedin architectural design to create a visuallyappealing and functional space.
   螺旋四联体在建筑设计中常用来创造一个既美观又实用的空间。