The application of the diodematrix and stepping principles not only increases the controllers versatility greatly but also makes the programming work much easier.
由于它利用了二极管矩阵和步进器的原理，不但大大提高了通用性，而且编制程序也很容易。
2
The LED(light-emitting diode) dot matrix screen is constitute of computer, data transfer unit and display unit.
大型LED（发光二极管）显示屏由计算机、数据转换单元与显示单元组成。
3
On the base of fabrication of the patterned DLC thin film cathode, a ki nd of matrix -addressed diode FED prototype is designed and packaged.