“标线”怎么读？

很多运河是按照地图上的坐标线开凿的。Many canals were built along map grid lines.介绍了热熔型道路标线涂料的组成及其施工方法.Composition and application of thermoplastic marking paint are introduced.初学游泳者不得进入深水区,携带救生圈不得超越浅水区标线进入深水区.Beginners or swimmers wearing...

“标线”的英语可以翻译为：graticule，reticule ...