但是大多数简单的曲线绘图仪在绘制二维数据方面或者在复杂的图形中进行极为精细的控制方面显得很不足。
However, most simple curve plotters are insufficient for plotting two-dimensional data or for exerting detailed control over a complicated graph.
用显微硬度仪测定合金的硬度，分析其硬度随氧化时间变化的情况，绘制该钢的显微硬度随时间变化的曲线。
The hardness of the alloy following the change of time was analyzed by micro- hardness instrument and the alloy's hardness curve following the change of time was drawn.
其结果以表格的形式打印输出，特性曲线用x - Y数字绘图仪绘制。
The results are printed out in the form of tables and the characteristic curves are plotted by a X-Y digital plotter.
在每次测量前需要手动标定X - Y记录仪的坐标以及切换测试项目间的油路，测试曲线绘制完成后也需要手动计算电液伺服阀的各项性能参数。
Before the test, the coordinates of the X-Y recorder are demarcated and the shifts of the test oil circuit are done manually. The parameters of the characteristics are also computed manually.
在每次测量前需要手动标定X - Y记录仪的坐标以及切换测试项目间的油路，测试曲线绘制完成后也需要手动计算电液伺服阀的各项性能参数。
Before the test, the coordinates of the X-Y recorder are demarcated and the shifts of the test oil circuit are done manually. The parameters of the characteristics are also computed manually.
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