轨距尺 meaning in Chinese

gauge measure
gauge template
spacing rule

It is the endless line of the one round of 500 metres
一周500m轨距尺610mm的环状路线。
Verification regulation of calibrater for railway track gauging rule
铁路轨距尺检定器检定规程
The darjeeling himalayan railway is the light railway system of a gauge 610 millimeters
大吉岭喜马拉雅铁路的轨距尺是610毫米。
Even the rail gauge is 1 , 067mm . it is narrower than standard gauge of 1 , 435 mm
轨距尺是1435毫米，后面的9850型是1067毫米，比较宽。
Of the standard gauges of china hainan island . it was already stopped for use , but it was keeping good condition
中国海南岛的标准轨轨距尺1435mm kd5型，是原来日本国铁的9600型。