So'zlar, atamalar va tushunchalarning ma'nosi
Bergshtrixlar (nemischa berg — tog`, shtrix-chiziq) – topografik xaritalarda yon bag`irning qaysi tomonga pasayib borishini ko`rsatish uchun gorizontallarga tik (perpendikulyar) qo`yiladigan chiziqlar.
