However, most simple curve plotters are insufficient for plotting two-dimensional data or for exerting detailed control over a complicated graph.
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。
2
How to use the two-dimensional code technology to control the two-dimensional code security?
不用自主的二维码技术怎么把控二维码的安全？
3
The punch refitted with microcomputer numerical control is suitable for the shaping of thin metal plates by punching, which requires moving along two-dimensional path and locating accurately.