The part of execution in which an operand or instruction is read from main storage and written into a control unit or arithmetic unit register.

执行过程中的一个阶段所需的时间，在此期间，计算机从主存储器中取出指令或操作数，并将其存入控制器或运算器的寄存器中。

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Hereinto, DSU is shorted for database storage unit. It is one subsystem of communication based train control (CBTC) system.

其中，DSU是数据库存储单元的简称，它是CBTC系统所包含的诸多子系统之一。

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Design of the hybrid energy storage system power conversion unit circuit topology, the energy storage system of the compound of the working principle and developed a digital control strategy.

设计了复合储能系统功率变换单元电路拓扑，阐述了该复合储能系统的工作原理并制定了数字化控制策略。

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