1) cross line perpendicularity detection
十字线垂直度检测
3) detection of crossline
十字线检测
4) plumb line
用铅垂线检查…的垂直度;用铅垂线测量探测
5) linearity testing
直线度检测
1.
Aiming at the requirement of fast economical and effective solution to linearity testing of extrusion dies automatic grinding,the linearity testing of extrusion dies was studied through intensive research on testing target and measuring mathematic model building.
针对目前国内尚无快速、经济、有效的解决挤出平模头自动化研磨平模头直线度检测的现状,通过对测量对象的深入研究,建立了测量数学模型,提出了挤出平模头直线度测量方法。
6) detecting of vertical and horizontal lines
垂直和水平直线检测
补充资料：十字
1.指物呈"十"字形。 2.十个字。参见"十字格"。
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