1) setting-out of side plumb-bob
边垂线标定
2) demarcate a boundary by setting up boundary markers
标定边界线
3) vertical plumb coordinatograph
垂线坐标仪
1.
Design of remote twin-direction vertical plumb coordinatograph based on LonWorks;
基于LonWorks总线的遥测双向垂线坐标仪的设计
4) vertical coordinate
垂线坐标系
5) to demarcate boundaries
标定边界
6) Three perpendicular line theorems
三垂线定理
补充资料：边垂
1.见"边陲"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条