The csv.writer method produces a CSV file from an iterable object; cursor.fetchall() is a bit of a beast, and four lines are enough to produce the CSV output.
writer 方法从一个可迭代的对象生成一个 CSV 文件；cursor.fetchall() 功能强大，4 个代码行就足以生成 CSV 输出。
Four spectral lines with different wave length of sodium atom were selected in measuring the arc temperature by Boltzmann's Graphical Method.
试验选用了钠原子四条不同波长的谱线，用玻耳兹曼图解法求得电弧的温度。
In this paper, a drawing algorithm of contour lines with inner boundary constraints is obtained by the inner boundary curves of contour lines generated by using four-point method.
利用四点格式生成等值线图的内边界曲线，给出了带内边界约束条件的等值线图的绘制算法。
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