ALU: arithmetic Logic Unit; the circuitry within the CPU which performs all arithmetic functions.
算术逻辑运算器：执行运算功能的中央处理器内的线路。
Since HSY requires dc magnetic field, an exciter with control circuitry is needed in addition to the conventional PMSY drive unit when employed as a motor.
HSY作为电动机使用时，由于需要直流磁场，与普通pmsy的驱动单元相比，应额外增加一个励磁电路。
The computer unit contains the computer's microprocessor, its memory, and the chips and circuitry.
主机里包括计算机微处理器、内在及芯片和电路。
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