| 1. | Counters can be generally classified as either serial or synchronous .
计算器通常可分为串行和同步两类。
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| 2. | This type of counter is called a parallel-carry synchronous counter .
这种计数器称为并行进位同步计数器。
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| 3. | A synchronous motor drives the measuring bob at a constant rotational speed .
同步马达驱动测锤以恒速旋转。
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| 4. | In a synchronous counter all stages are triggered by a common clock .
在同步计算器中，所有触发器均由同一个时钟触发。
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| 5. | The synchronous set and synchronous clear for stages a and b should be shown as follows .
A和B级的同步置位和同步复位应表示如下。
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| 6. | Polling is a synchronous mechanism, where devices are serviced in sequence .
查询是一种同步机构，其中的各个设备是依次接受服务的。
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| 7. | In a synchronous procedure, all events take place within a specified period of time .
在同步方式中，所有动作都在特定的期间内产生。
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| 8. | A synchronous motor can be used to drive a fan through a variable-speed magnetic coupling .
一个同步电动机能够通过变速磁性联轴带动风扇。
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| 9. | Since the above inequality is not satisfied a serial-carry synchronous counter can not be used .
因上述不等式不能成立，所以不能采用串行进位同步计数器。
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| 10. | The synchronous hysteresis motor consists of a polyphase-wound stator and a magnetically hard rotor .
同步迟滞电动机由一个多相缠绕的定子和一个硬磁转子所组成。
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