本文介绍一种按规则序列设计的移位型计数器。此类计数器设计方便，电路简单，译码电路简单，并具有快速自启动特性。
In this paper, it introduces one kind of shift counters designed with regular sequences. These counters have many advantages: easy to design, simple circuit, simple decode and self starting.
利用克尔透镜锁模自启动条件，对常用的四镜腔激光器的启动特性进行了系统分析。
The starting characteristics are theoretically analyzed according to the self-starting condition of Kerr lens mode locking.
利用克尔透镜锁模自启动条件，对常用的四镜腔激光器的启动特性进行了系统分析。
The starting characteristics are theoretically analyzed according to the self-starting condition of Kerr lens mode locking.
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