The utility model relates to a plotting tool capable of spreading coordinates quickly, which belongs to a special drawing tool and fits for the work of spreading points in a plottingchart.
本实用新型的坐标速展器是属于专用绘图工具，适用于测绘图的展点工作。
2
He is responsible for plotting the reefs on the chart.
他负责在海图上标出暗礁的位置。
3
Dead reckoning (DR) plotting can be done directly on a pilot chart or on a plotting sheet. Of the various types of navigation, dead reckoning alone is always available in some form.