1. Use to add a single vertical ordinate dimension. Attach one endpoint to ordinate origin and one to the feature. 用于添加一个垂直坐标尺寸。将一个端点连接到坐标原点，一个端点连接到部件。
2. Reaction to fire tests -- Spread of flame -- Part 2: Lateral spread on building products in vertical configuration. 着火试验反应——火焰蔓延——第2部分：垂直结构中建筑产品上的横向蔓延。
3. Parts in contact with liquid in pipe are of brass and beryllium copper. Flow switch installs in tee in horizontal or vertical piping. 在管道内与流体接触的部件是黄铜和铍铜合金。流量开关以三通管方式安装在水平或垂直管道上。
英英解释
n.
1. something that is oriented vertically
2. a vertical structural member as a post or stake adj.
1. at right angles to the plane of the horizon or a base line
2. relating to or involving all stages of a business from production to distribution
3. upright in position or posture
4. of or relating to different levels in a hierarchy (as levels of social class or income group)
