• 垂直的管道

vertical NPN纵向NPNverticaladj.垂直的；纵向的；顶点的n.垂直物；垂直的位置vertical comparator垂直比测器Vertical Test Range垂直试验区vertical wedge wipe竖直楔形接帚vertical Bloch line垂直布洛线vertical viscometer竖式黏度计vertical visibility垂直能见度vertical scroll bar垂直滚动条vertical face plate立式花盘vertical earth axis地轴系立轴vertical nipper jaw竖式钳口

1. The backflow preventer must be supported and is not designed to carry full weight of the stand pipe.
   防回流阀必须有所支撑，不能用于承载立管的全部重量。
2. The installation of vertical water supply pipes on some floors does not consider the space necessary for the installation of fire and water protection items.
   部分楼层的给水立管的安装没有考虑防火防水密封材料的安装空间。