双向移位寄存器是一种中规模集成电路，可构成移位寄存器型计数器。
Bidirectional shift register is a kind of medium-scale integrated circuits, it can be used to compose various counters conveniently.
利用四位双向移位寄存器等电子元件可制作能直观显示直流电流方向的模拟演示仪。
Four-bit bidirectional shift register was used to produce the device for demonstrating the direction of direct current.
本文就浮点加速逻辑提出双向并行移位链式结构，并给出了该结构的逻辑实现方法。
It is put forward in the paper that a new structure is called floating-point accelerating logic with two-way parallel shift chain (TPSC).
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