种位 meaning in Chinese

species locus

The principal of the digital communication theory and the relational theory of the synchronization are introduced in fourth chapter . in fifth chapter , author detailedly describes the methods of two kind digital phase - locked loop , expounds the processing of design and implementation by fpga
第四章介绍了数字通信中位同步的相关理论,并在第五章详细叙述了两种数字锁相位同步的原理,并论述了使用fpga设计实现这两种位同步方法的过程。