To control stepping motors, the balance bridge power drive circuit is made up by TDA1521 integrated audio power amplifier, the pulse allotter is made up by the parallel ports of computer and latches.
双回转机构的步进电机控制电路由TDA1521音频集成功率放大器组成平衡桥式功率驱动电路，由计算机并行口经过锁存器构成脉冲分配器。
After a bridge is a row of barber shops, store the audio sounded a very loud show of singing, and this somewhat run-down district with the existence of distinct but inexplicable sense of harmony.
过了桥就是一排的理发店，店里的音响发出极喧响的歌声，和这个有些破旧的小区有着分明却莫名融洽的存在感。
When this occurs, particularly when an active talker is being excluded, the bridge transmits an indication to one or more of theendpoints as part of one of the transmitted audio signals.
当发生这样的情况时，尤其是当活跃的说话者被排除在外时，该信桥将指 示作为发送的音频信号中的一个的一部分发送给一个或多个端点。
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