轨面 meaning in English

rail level
rail surface

Cranes ; tread profile of crane rail wheels and table of rails for different wheel diameters
起重机.起重机轨道轮的触轨面轮廓和不同轨轮直径轨道
The characteristics of wheel - rail rolling contact fatigue and causes of induced fatigue were reviewed
轮轨经过长时间滚动接触会导致轨面剥落，产生疲劳。
In this paper , the author study the measurement method and instrument of the euv / x - ray optical component , improve the design of the measuring apparatus - long trace profiler ltp already existing , provide a kind of newly long trace profiler ltp - iii , which is used to measure the slope error
本文主要是研究euv x - ray光学元件面形误差的测量方法与测量仪器。对已有的测量仪器长轨面形仪ltp仪器进行了改进设计，提供一种新型的长轨面形仪ltp - ，用于测量光学元件的倾斜度误差。