基于fdtd算法的双芯光子晶体微腔，其模场分布仿真。-Based on dual-core photonic crystal microcavities fdtd algorithm, its simulation mode field distribution.

微芯公司推出的永磁同步电机开发板的详细资料，学习此类的同学抓紧了(Details of the development board of permanent magnet synchronous motor microchip company launched, such students to learn)