This chemical signal is thought to trigger motivation and, eventually with repetition, addiction.
这种化学讯号被认为会触发动机，而且在反复后，终将会上瘾。
2
The functions of the processor are 1) measuring the signal parameters, especially the Pulse Repetition Interval(PRI) of desired signa.
处理器的功能包括：1）测量信号参数，尤其是选定雷达的脉冲重复间隔（PRI）参数。
3
So, the modulation of irregular pulse repetition interval may be employed in FCP that the randomization of signal modulation would be obtained in both time and frequency domains.