第一项任务(也是最重要的任务)是计算图形的比例因子，就是说在绘图时每单位的值在高度上要占用多少像素。
The first (and most important) task is to calculate the scaling factor for the graph. This is simply how many pixels in height each value will be worth when it is plotted.
第一项任务（也是最重要的任务）是计算图形的比例因子，就是说在绘图时每单位的值在高度上要占用多少像素。
The first (and most important) task is to calculate the scaling factor for the graph. This is simply how many pixels in height each value will be worth when it is plotted.
绘图员用铅笔、丁字尺、三角板和比例尺在绘图板上绘图。
Draughtsmen make drawing on a drawing board using a pencil and at-square set square and scale.
绘图员用铅笔、丁字尺、三角板和比例尺在绘图板上绘图。
Draughtsmen make drawing on a drawing board, using a pencil and at-square, set square and scale.
利用绘图及测量仪器，测绘处的人员专责绘制及更新各种比例的地图以作不同种类的用途。
Using cartographic and survey instrument staff of the survey and mapping office carry out the production and revision of maps and plans at different scales for different purposes.
利用绘图及测量仪器，测绘处的人员专责绘制及更新各种比例的地图以作不同种类的用途。
Using cartographic and survey instrument, staff of the survey and Mapping Office carry out the production and revision of maps and plans at different scales for different purposes.
我们所编制的绘图系统，可广泛、灵活、方便地适应于绘制各类数据、各种比例尺的等值线图。
The mapping system that we draw up can be widely, flexibly and conveniently applied to drawing contour maps of various data and scale.
我们所编制的绘图系统，可广泛、灵活、方便地适应于绘制各类数据、各种比例尺的等值线图。
The mapping system that we draw up can be widely, flexibly and conveniently applied to drawing contour maps of various data and scale.
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