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A device for converting energy form one form to another. In relation to computers, the term is applied to a read/write head, to detector of sector marks in a magnetic disc system, and to electronic/sonic pulse converters of delay line memory.
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把能量从一种形式转换成另一种形式的装置。在与计算机有关时，这个术语用在磁盘系统中的读／写磁头、扇面标记的检测上，以及用在延迟线存储器的电子或声波脉冲变换器上。 |
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A device for counting the number of red blood cells in a blood sample.
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红细胞计数器血液中用来计算红细胞个数的一种装置 |
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A device for guiding a tool or for holding machine work in place.
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夹具，装配架导引工具或使机器固定在适当位置上运转的设备 |
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A device for igniting the charge of a firearm.
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枪机一种用来点燃火器中火药的装置 |
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A device for indicating wind direction.
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风标用来显示风向的设施 |
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A device for measuring the work capacity of a muscle or group of muscles during contraction.
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测力器用来测量在收缩中某一块肌肉或一组肌肉做功能力的装置 |
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A device for projecting sound waves, as in a loudspeaker.
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角状扩音器一种用来产生声波的装置，如扬声器 |
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A device for protection from the weather consisting of a collapsible, usually circular canopy mounted on a central rod.
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雨伞用来防风雨装置，由某在一根中心柱上的可折收的，经常是圆形的罩蓬构成 |
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A device for recording, measuring, or controlling, especially such a device functioning as part of a control system.
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仪表，仪器用于记录、测量或拉制的装置，特别是作为控制系统部分的此类装置 |
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A device for shifting gears on a bicycle by moving the chain between sprocket wheels of different sizes.
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脱轨器，转撤器通过在不同大小的扣链齿轮间移动链条而转换自行车齿轮（换档）的装置 |
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A device for slowing or stopping motion, as of a vehicle, especially by contact friction.
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闸使运动减速或停止的装置，如汽车的减速装置，尤指通过接触摩擦 |
