| Subject | English | Czech |
| transp., mil., grnd.forc. | bonnet leading edge reference line | vztažná čára náběžné hrany kapoty |
| construct. | reference line | pomocná čára |
| comp., MS | wall reference line | referenční linka zdi (The line that extends from the wall begin point to the wall endpoint. Although the wall reference line is typically centered on the wall or aligned with one edge of the wall, you can locate it any distance you want from the wall) |