这些通常根据由手动操作的扫描杆连接的超声波探针和译码器确定的位置来绘制。
These often rely on the ultrasonic probe being connected to a manually operated scanning arm with the position being encoded.
当微处理器对该指令译码时，它确定处理的是哪一条指令以便选择正确的操作序列去执行。
When the microprocessor decodes the instruction, it determines which instruction it is in order to select the correct sequence of operations to perform.
指令译码器将编码指令信号进行译码，最后由驱动电路来驱动执行电路实现各种指令的操作。
Encoding instruction decoder for decoding command signals, and finally by the drive circuit to drive the implementation of circuit operation to achieve a variety of commands.
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