A color display device has a single light guiding plate, and first, second and third light sources that respectively independently exhibit three primary colors.
一种彩色显示器件，具有一个单独的光波导板，和分别独立地展现三原色和第一、第二、和第三光源。
2
This still enabled each half cycle to complete its loop through the one-half of primary in the plate circuit and one-half in the cathode circuit.
这样每半周的回路是完整的，一半的初级在屏极线路上，另一半在阴极线路上。
3
The two primary types of pressure plate assemblies are coil spring assembly and diaphragm spring .