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.
本文介绍一种按规则序列设计的移位型计数器。
In this paper, it introduces one kind of shift counters designed with regular sequences.
后期纤维化表现为在照射区出现不规则索条状阴影及网织状阴影，纵隔结构牵拉移位等表现。
The later stage shows fibrosis in the irradiated area for the irregular strip and reticulate structure shadow and the mediastinum displacement etc.
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